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Titre
Date
Durée
309: The Final Episode
23 Jun 2026
00:44:43
The final episode of Thinking Elixir after six incredible years of weekly episodes! We send things off in style with a packed news segment covering Phoenix LiveView 1.2's new colocated CSS powered by the @scope at-rule, the retirement of the long-standing Earmark Markdown library and why you should migrate to MDEx, a major Sagents v0.8.0 release bringing durable interrupts, and structured extraction, PostgreSQL 19's exciting new features including graph queries, SpaceX's jaw-dropping $60 billion acquisition of Cursor, and more! Finally, David shares his new role on the Erlang Ecosystem Foundation board, and Mark talks about what's next for Sagents and his exciting new AI-native startup. Thank you for six wonderful years. We're so glad you were here along the way and now for the final episode!
Elixir Community News
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
Elixir v1.20 has officially landed, marking a huge milestone as the language is now officially a gradually typed language, type checking every single line of code without requiring developer annotations, and even prompting some developers to drop Dialyzer entirely. HexDocs is rolling out per-package subdomains for improved browser security isolation, the Erlang Ecosystem Foundation has launched an Ecosystem Registry to help answer "who uses this?" for Erlang, Elixir, and Gleam companies, and the Lua library for Elixir is approaching its v1.0 release with a brand new pure-Elixir Lua 5.3 VM. On the security front, a sophisticated self-replicating worm called Miasma compromised 73 Microsoft GitHub repos by exploiting legitimate OIDC tokens and valid SLSA provenance, even weaponizing AI coding tools like Claude Code and Cursor, raising fresh questions about supply chain safety and whether Hex might benefit from a cooldown mechanism like the one Ruby just shipped, and more!
Elixir Community News
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
Mark shares a bittersweet housekeeping update — the Thinking Elixir Podcast is winding down, with the final episode airing June 23rd, 2026, closing the book on over six years of weekly shows. On the news front, Ecto 3.14 lands with long-awaited UUIDv7 support (time-sortable UUIDs for better index performance) along with a host of other improvements, Oban Pro adds a “human approval” workflow step that lets jobs pause mid-execution and resume on a signal without holding a database connection open, Hologram v0.9 arrives with a new Realtime feature enabling pure-Elixir WebSocket push from server to browser, Dashbit shares a behind-the-scenes look at how they designed Git integration in Tidewave Web across three developer personas, and the NSA drops new Zero Trust Implementation Guidelines that pair nicely with the Erlang Ecosystem Foundation's own security hardening document, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
The Thinking Elixir Podcast ends June 23rd, 2026 — over 6 years weekly, ~9 years of Elixir podcasting.
Episode recorded ahead of time; major news that dropped after recording will be covered next episode.
Security takes center stage this week as the EEF's Jonatan Männchen highlights that atom exhaustion accounts for roughly one tenth of all CVEs in the BEAM ecosystem and Sobelow can help catch it before it hits production. Hackney users get an urgent nudge to upgrade to v4.0.3, which patches 9 CVEs including high-severity issues and fixes missing HTTP/3 certificate verification, thanks in part to Peter Ullrich's AI-assisted vulnerability research. On the exciting side, the new Elixir 1.20-rc.6 type system is proving its worth in the real world, with Tyler Young reporting it caught ~500 issues, including outright bugs, that 1.19 completely missed. Dannote releases "vibe", an ambitious BEAM-native coding agent for Elixir/OTP projects featuring a TUI, LiveView web console, subagents, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
The Thinking Elixir Podcast is ending June 23rd, 2026, after 6 years of weekly episodes.
News includes Elixir 1.20.0-rc.6 arriving as likely the final release candidate before v1.20.0 ships, completing a ~15-week roadmap and delivering full type inference across applications and dependencies. The EEF 2026 election results are in with 3 returning and 1 new board member, LiveStash v0.3.0 lands with a Redis adapter and auto-stashing for Phoenix LiveView state recovery on WebSocket reconnects, a call goes out for BEAM ecosystem companies to step up and support the EEF’s critical security work, and GitHub suffered a significant breach when a hijacked VS Code extension quietly exfiltrated ~3,800 internal repositories in just 11 minutes, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://elixirforum.com/t/elixir-v1-20-0-rc-6-released/75448 – Elixir v1.20.0-rc.6 released on the ElixirForum - the likely final release candidate before v1.20.0 final, completing the ~15 week type inference roadmap. Includes tips for profiling compile times before and after upgrading.
https://github.com/software-mansion-labs/live-stash – GitHub repo for LiveStash - a library providing a reliable API to stash and recover Phoenix LiveView assigns when socket connections are interrupted or re-established.
https://x.com/ZachSDaniel1/status/2057517360060522872 – A call to action for companies generating revenue on the BEAM ecosystem to support the EEF. The EEF maintains a CNA and coordinates security across the ecosystem including hex.pm, but the current effort is no longer sustainable.
https://hauleth.dev/post/writing-tests/ – A solid blog post on writing better Elixir tests. Covers using a @subject module attribute, grouping tests with describe, preferring dependency injection over mocking, avoiding factory libraries in favor of calling context functions directly, and using property-based testing with StreamData.
https://x.com/github/status/2056884788179726685 – GitHub's official tweet confirming unauthorized access to their internal repositories. No confirmed evidence of impact to customer data outside GitHub's internal repos at time of posting.
https://x.com/intcyberdigest/status/2056970677668770117 – Report that GitHub was compromised by TeamPCP via a poisoned VS Code extension on an employee device, resulting in ~3,800 internal repositories being exfiltrated and sold on a cybercrime forum.
https://x.com/star_knight12/status/2056977944334266428 – Detailed breakdown of the GitHub hack - the Nx Console VS Code extension (2.2M installs) was hijacked with a credential stealer hidden in an orphan commit. It harvested tokens from GitHub, npm, AWS, Kubernetes, and 1Password. The poisoned version was live for only 11 minutes before detection.
News includes a major milestone for Elixir's set-theoretic types as inference of all language constructs is completed and merged with Elixir v1.20.0-rc.5 hot on its heels, OTP 29.0 drops as a major release with secure-by-default SSH, post-quantum SSL key exchange, Erlang doctests, and more, a wave of high-severity CVEs hits the Elixir and Phoenix stack prompting the EEF CNA to take on a larger work load as AI-driven vulnerability reports surge, string processing in Elixir gets a serious speed boost via SWAR (SIMD Within A Register) optimizations with 1.5–5x improvements across Base and String operations, and a handy tip for enabling state-preserving hot reloads in Phoenix LiveView with just a small dev.exs config tweak, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://github.com/elixir-lang/elixir/issues/14558 – The meta-issue tracking set-theoretic type inference of all Elixir constructs, now wrapped up. Includes occurrence typing for high-degree precision. A new RC is expected soon on the way to Elixir v1.20.
https://cna.erlef.org/ – The EEF CNA (CVE Numbering Authority) has seen a large increase in volume of CVEs, largely driven by AI tools. They are considering a funding campaign to cover the increased costs of fixing and administering CVEs.
https://bsky.app/profile/tylerayoung.com/post/3mlsxbdmrw22e – Tyler Young highlights a heap of recent high-severity CVEs published against the typical Elixir + Phoenix web stack. Packages to check include cowboy < 2.15.0, cowlib < 2.16.1, plug < 1.19.2, bandit < 1.11.1, and decimal < 3.0.0.
https://hex.pm/packages/mix_audit – The mix_audit package can be installed and run via mix deps.audit to check your app against up-to-date published CVEs. Recommended to make it part of your CI pipeline.
https://www.erlang.org/news/188 – OTP 29.0 released as a new major version. Highlights include unsafe function warnings, SSH daemon now defaults to disabled shell/exec services, SFTP no longer enabled by default, post-quantum hybrid key exchange as default in SSL, ANSI terminal support, Erlang doctest support, and xref now handles ignore_xref natively. Note that 32-bit Windows builds are no longer available.
https://github.com/elixir-lang/elixir/pull/15357 – PR adding SWAR (SIMD Within A Register) versions of Base validations to Elixir. SWAR treats a CPU register like a small vector to check multiple bytes at once instead of one by one.
https://github.com/erlang/otp/pull/10948 – The SWAR technique was also applied to Erlang itself, accelerating binary ASCII traversal using 56-bit SWAR. Improvements range from 0x to 2x depending on the operation.
News includes the Erlang Ecosystem Foundation publishing its 2026 board election candidates with voting now open, a new GitHub organization called Elixir-Vibe launching with tools to detect and fix AI-generated Elixir “slop” — including ExSlop and the related semantic linter Credence, erlang_python 3.0.0 arriving with true parallelism by embedding CPython into the BEAM as a first-class citizen, ElixirConf EU 2026 videos beginning to drop including keynotes from José Valim and Chris McCord, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://erlef.org/blog/eef/election-2026-candidates – Candidates for the Erlang Ecosystem Foundation 2026 board election have been published. Candidates include David Bernheisel, Jon Carstens, Francesco Cesarini (incumbent), Nathan Hessler, Amos King (incumbent), Greg Mefford, Duane Strikwerda, and Alistair Woodman (incumbent). Voting opens May 8th at 16:00 UTC and closes May 15th at 23:59 UTC.
https://x.com/dan_note/status/2050239025458409646 – DanNote on GitHub created a new GitHub organization called "Elixir-Vibe" — a home for Elixir-native tooling for AI-assisted coding, AST analysis, structural code search, code quality, architecture analysis, and BEAM-native coding agents.
https://github.com/elixir-vibe – The Elixir-Vibe GitHub organization housing libraries for fixing, reviewing, and spotting "slop" in AI-generated Elixir code.
https://x.com/kamilskowron/status/2051778642053628125 – Announcement of Credence, a semantic linter for LLM-generated Elixir code that catches patterns that compile and pass tests but are non-idiomatic, inefficient, or ported from Python/JavaScript conventions that don't belong in Elixir.
https://x.com/benoitc/status/2050939005395505185 – Benoit announced erlang_python 3.0.0, which embeds CPython into the BEAM with true parallelism via Python 3.14 OWN_GIL subinterpreters or free-threaded 3.13t, async/await, bidirectional Erlang↔Python callbacks, and stable thread affinity for numpy/torch.
https://github.com/benoitc/erlang-python – The erlang-python GitHub repo — combines Python's ML/AI ecosystem with Erlang's concurrency, making Python a first-class BEAM citizen rather than a simple guest like pythonx.
https://x.com/josevalim/status/2052090411607286087 – José Valim announced Tidewave updates including a minimap on large file diffs, pin-point agent feedback, smoother onboarding for Tidewave Teams, and updates to OpenCode, Claude Code & Codex.
https://open-design.ai/ – Open-source alternative to Claude Design. Turns your existing coding agent (Claude, Codex, Cursor, Gemini, OpenCode, Qwen) into a design engine driven by 31 composable skills and 72 brand-grade design systems. Available on Mac and Windows.
News includes Mob, an exciting new framework that brings BEAM-on-device mobile development to Elixir with OTP running natively inside iOS and Android apps, Folio a new library for generating print-quality PDFs and SVGs from Elixir data powered by Typst via Rustler NIF, both Oban v2.22 and Oban Pro v1.7.0 were released with a host of improvements including job querying, unique workflows, and a rate limiting overhaul, LiveVue v1.1 arrives with Node-less SSR via QuickBeam and persistent layouts, erlang_quic v1.3.0 brings a production-ready pure-Erlang QUIC and HTTP/3 stack to OTP 27, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://github.com/dannote/folio – Folio on GitHub — an open-source library that generates print-quality PDF/SVG/PNG from Elixir data, powered by Typst via Rustler NIF. Documents are Elixir values with no templates or external processes required.
https://genericjam.com/blog/mob-intro – Blog post introducing Mob — "LiveView for native mobile via NIF with BEAM on device with native views and all logic in Elixir." Created by Kevin Edey, a former React Native and native iOS developer.
https://hexdocs.pm/mob/readme.html – Mob HexDocs — a BEAM-on-device mobile framework for Elixir. OTP runs inside iOS and Android apps via a thin NIF, with screens as GenServers and UI rendered by Compose and SwiftUI. Currently in early development.
https://github.com/GenericJam/mob – Mob on GitHub — the source for the BEAM-on-device mobile framework supporting Android emulator and iOS simulator.
https://x.com/sorentwo/status/2049844973445468336 – Announcement tweet for Oban Pro v1.7.0, highlighting Signals and awaiting, Unique workflows, Rate limiting overhaul, Chunking overhaul, Global cancel/discard hooks, and Improved indexes.
https://oban.pro/docs/pro/1.7.0/changelog.html – Oban Pro v1.7.0 changelog detailing Signals and awaiting, Unique workflows, Rate limiting overhaul, Chunking overhaul, Global cancel/discard hooks, and Improved indexes.
https://x.com/jskalc/status/2048787965111918775 – Follow-up tweet introducing QuickBeam as a new third SSR mode for LiveVue — running QuickJS as a NIF for better performance, now the default mode.
https://hexdocs.pm/live_vue/persistent_layout.html – LiveVue docs on persistent layouts — allows rendering a root Vue component in root.heex.html that survives navigation, preserving local state, scroll position, etc., with components passed as slots.
https://github.com/dannote/ex_ast – ExAST on GitHub — provides a query API for structural searches and codemods over Elixir AST, with support for matching by shape, filtering by context, resolving local aliases, and composing predicates.
https://ast-grep.github.io/ – ast-grep — a related tool referenced in the ExAST context for structural code search and rewriting.
https://github.com/benoitc/erlang_quic – erlang_quic on GitHub — pure-Erlang QUIC/HTTP3 stack with no external dependencies, featuring three congestion controllers, connection migration, TLS 1.3, and a quic_dist mode replacing TCP-based distribution.
https://github.com/matz/spinel – Spinel on GitHub — compiles Ruby source code into standalone native executables via whole-program type inference and optimized C code generation, achieving significant speedups over CRuby.
News includes Phoenix LiveDebugger hitting v1.0 with an interactive tour to go along with it, LiveStash v0.2.0 shipping with API improvements and a tease of Redis & Mnesia adapters on the horizon, German Velasco making his TestingLiveView.com course completely free for the Elixir community, Volt reaching v0.8.0 as an Elixir-native frontend build tool that eliminates the need for Node.js, and Francesco Cesarini announcing his departure from Erlang Solutions while pledging to remain active in the Erlang Ecosystem Foundation, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://x.com/swmansionElixir/status/2047324614519652484 – Phoenix LiveDebugger hits v1.0 — Software Mansion announces the milestone release, signaling a shift from active development to maintenance. They consider it feature-complete.
https://x.com/dan_note/status/2046539535287287862 – Volt reaches v0.8.0 — the Elixir-native frontend build tool adds a mix igniter command to migrate projects from esbuild + Tailwind with no Node.js required.
https://github.com/elixir-volt/volt – Volt GitHub repository — an Elixir-native frontend build tool supporting JavaScript, TypeScript, Vue SFCs, and CSS with a dev server, HMR, and production builds.
It's Episode 300 — a milestone just under 6 years in the making! To celebrate, we kick things off with a fun song, then dive into the news: the Localize library v0.15.0 brings locale-aware formatting and Unicode CLDR data to Elixir without any compile-time code generation, a new library called Reach builds program dependence graphs for Elixir and Erlang to help coding agents and static analysis tools understand your codebase, Tidewave gets exciting updates including voice input with click-to-add context and the ability to install it as a PWA, the ErlEF has opened its 2026 board elections with voting running May 8-15, and more! Then we sit down with José Valim for an in-depth interview covering Elixir v1.20, the latest progress on the set-theoretic type system, the story behind Tidewave, and how AI is — and isn't — changing development on Elixir itself.
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://github.com/elixir-localize/localize – The Localize library v0.15.0 was released — a locale-aware formatting, validation, and data access library for Elixir built on the Unicode CLDR repository. Consolidates the ex_cldr_* family into a single package with no compile-time code generation; all CLDR data loads at runtime and caches in :persistent_term.
https://github.com/dannote/reach – Reach builds a graph of data flow, control flow, and side effects in your code so you can trace values to their origin, find tainted paths from user input to dangerous sinks, or check if statements can be safely reordered. Works on Elixir/Erlang source and compiled BEAM bytecode.
https://x.com/josevalim/status/2044483950089834990 – José Valim demos new Tidewave updates — voice input now works, and while talking you can click on elements to build context into a message. Also works when referencing lines of code in code reviews.
https://github.com/dbernheisel/dotfiles/blob/master/.local/bin/_mix – The Zsh autocompletion script for mix tasks. Runs mix help to find tasks and their descriptions, then mix help {task} for switches, feeding results into the Zsh completion engine with per-project caching.
https://erlef.org/blog/eef/election-2026 – The Erlang Ecosystem Foundation has announced its 2026 board elections. Candidacy submissions close May 7th (23:59 UTC), voting runs May 8–15. Must be a paying, contributing, or managing member to participate.
The Erlang Ecosystem Foundation is seeking community support for a major grant to fund the Ægis security project and the deadline is April 17th to show support, Hex.pm published the results of its first-ever comprehensive third-party security audit revealing three high-severity findings that have since been fixed, José Valim unveils a massive Tidewave update including UI Variants and a new "vision" mode that lets your coding agent take screenshots and record videos of your web app, Hex.pm gains the ability to serve llms.txt files for Elixir and Erlang packages, Remote releases a new Elixir LSP called Dexter written in Go, Lotus gets significant updates as an embeddable BI engine for Phoenix apps, Ghostty terminal emulator bindings land in Elixir bringing GenServer-based terminals to LiveView, and we discuss the alarming ClickFix supply chain attack that compromised Axios and what it means for open source maintainers everywhere, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://marketing.erlef.org/news/grant-petition.html – The Erlang Ecosystem Foundation is seeking community backing for a grant that would fund two full years of work on the Ægis security project — improving how packages are published, verified, and trusted across Hex and the broader ecosystem. The deadline to show support is April 17th.
https://hex.pm/blog/security-audit – Hex.pm published the results of its first comprehensive third-party security audit, made possible by Alpha-Omega under the OpenSSF. Two firms — Paraxial.io and zentrust partners GmbH — reviewed the Hex registry, clients, documentation infrastructure, and supporting systems. Three high-severity issues were found and have all been fixed.
https://paraxial.io/blog/hex-pentest – Michael Lubas of Paraxial.io shares details of the white-box penetration testing performed on Hex.pm as part of the Ægis security audit.
https://hex.pm/reports/2026/zentrust.pdf – The published report from zentrust partners GmbH covering their adversarial/red-team style assessment of Hex.pm, including 3 high-severity findings (all now fixed) plus medium and low severity items.
https://hexdocs.pm/tidewave/ui_variants.html – Documentation for Tidewave's new UI Variants feature, which lets your coding agent build different versions of a page or UI component so you can pick and refine your favorite — all integrated directly in the browser.
https://x.com/adamwathan/status/2041977909502489060 – Adam Wathan (creator of TailwindCSS) shows off ui.sh, a set of skills for creating UIs in coding agent CLIs like Claude Code and Codex — noted as a comparison point to Tidewave's more integrated, browser-native experience.
https://x.com/josevalim/status/2042608254065287565 – José Valim demos Tidewave's new "vision" mode, which lets your coding agent take screenshots and record videos of your web app — including demoing a feature working on both desktop and mobile resolutions and delivering results to Slack.
https://x.com/josevalim/status/2042581154067337280 – José Valim announces that Hex.pm will now serve llms.txt files for Elixir/Erlang packages if the accept header is text/markdown. Package authors using ExDoc should update to the latest version and republish their docs.
https://github.com/remoteoss/dexter – Remote released Dexter, a new Elixir LSP written in Go. An interesting alternative to the official LSP, though its positioning relative to the official tooling raises some questions.
https://github.com/typhoonworks/lotus – Lotus is an embeddable BI (Business Intelligence) engine for Elixir apps featuring an SQL editor, dashboards, visualizations, and AI-powered query generation that mounts directly into a Phoenix app — no Metabase, Redash, or extra infrastructure needed.
https://lotus.typhoon.works/lotus – The Lotus demo app showcasing its latest features including an AI-powered query assistant (BYOK), dashboards with filters and public sharing, 16 chart types, improved query results with right-click filtering and sorting, and more.
https://github.com/ghostty-org/ghostty – Ghostty is a fast, feature-rich, native terminal emulator. Its libghostty library is a cross-platform C and Zig library for building terminal emulators or embedding terminal functionality into applications.
https://github.com/dannote/ghostty_ex – ghostty_ex is an Elixir library that wraps libghostty-vt, bringing a SIMD-optimized VT parsing terminal emulator to the BEAM. Terminals are GenServers, with full Unicode, 24-bit color, and scrollback with text reflow.
https://github.com/dannote/ghostty_ex?tab=readme-ov-file#liveview – The LiveView integration section of the ghostty_ex README, showing how to install the LiveView hook into a Phoenix app and use the Ghostty.LiveTerminal.Component to handle keyboard events and PTY lifecycle.
https://x.com/flaviocopes/status/2039973060158095827 – Flavio Copes explains how Axios was compromised via a targeted ClickFix attack — a social engineering technique that tricks maintainers into pasting malicious text into their terminal.
https://github.com/axios/axios/issues/10636 – Public post-mortem from the Axios team on the npm supply chain compromise, shared with the community for transparency and awareness.
https://cybersecuritynews.com/clickfix-attack/ – An explainer on the ClickFix attack — how hackers use it to trick users into running malware by pasting content from the web into their terminal.
https://simonwillison.net/2026/Apr/3/supply-chain-social-engineering/ – Simon Willison's write-up on the Axios supply chain attack and the social engineering tactics used — noting how time pressure during meetings makes maintainers especially vulnerable to quickly clicking through install prompts.
News includes the hex.pm website getting a fresh new redesign, the Hex 2.4 package manager upgrading to OAuth device flow authentication with two-factor authentication support for improved security, the official Elixir Expert LSP hitting its v0.1 release milestone, a new LiveStash library from SoftwareMansion that prevents state loss on LiveView reconnects, and José Valim himself stopping by to remind everyone that the ElixirConf US Call for Talks deadline is fast approaching, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://hex.pm/blog/hex-v24-released#website-redesign – The hex.pm website received a major redesign. Package pages now show the README directly, search results show more info at a glance, and the dashboard was reworked. Thanks to Paulo Valim for implementing the new design.
https://x.com/hexpm/status/2039764266471784603 – The local hex package was updated to v2.4, replacing password-based authentication with an OAuth device flow and adding two-factor authentication support to the CLI, significantly improving the security of publishing packages.
https://hex.pm/blog/hex-v24-released – Official Hex 2.4 release blog post covering the OAuth device flow, two-factor authentication support, and other improvements.
https://github.com/elixir-lang/elixir/releases/tag/v1.20.0-rc.4 – Elixir v1.20.0-rc.4 was released. Notable enhancements include showing undefined function errors even when missing variables, adding Process.get_label/1, and fixing URI.merge leaking a :+ marker when the base path is an empty string.
https://github.com/software-mansion-labs/live-stash – LiveStash provides a reliable, explicit API to safely stash and recover Phoenix LiveView assigns, keeping application state intact whenever a socket connection is interrupted or re-established.
https://elixirconf.com/ – José Valim joined to highlight ElixirConf US. Training is Sept 9, with the conference Sept 10-11 in Chicago and virtual. The Call for Talks deadline is approaching.
News includes Quickbeam, an exciting new research project that brings a full JavaScript runtime inside the BEAM with OTP supervision, native DOM access, and a built-in TypeScript toolchain, plus a companion Volt asset pipeline for Elixir; José Valim highlights how Elixir’s type system work is already inspiring optimizations in Python’s Ruff project, and shares a new blog post on the latest BDD performance improvements coming in Elixir v1.20; LiveView Debugger v0.7 arrives with source code links, nested live view tree structure, and a closer path to v1.0; a new browser-based Elixir Language Tour expands its Processes chapter with hands-on GenServers, Supervisors, and more; Oban v2.21 lands with workflow tracking, rate limiting, and massive index improvements; and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://github.com/elixir-volt/quickbeam – Quickbeam - a JavaScript runtime for the BEAM with Web APIs backed by OTP, native DOM, and a built-in TypeScript toolchain. Still an early beta research project.
https://github.com/cocoa-xu/exclosured – ExClosured - a new framework for compiling Rust to WebAssembly, running it in the browser, and hooking into Phoenix LiveView.
https://exclosured.app/ – Demo site for ExClosured, showing image manipulation and SQLite-in-the-browser examples.
https://x.com/swmansionelixir/status/2034650679986327924 – Announcement of a new version of the fully browser-based Elixir Language Tour, with an expanded Processes chapter covering Links, Agents, GenServers, and Supervisors.
https://github.com/zebbra/gettext_sigils – gettext_sigils - a library that simplifies gettext usage with a ~t sigil, e.g. ~t"Hello, #{user.name}" instead of gettext("Hello, %{name}", name: user.name).
https://x.com/josevalim/status/2034952526039056700 – José Valim responds to a "What Would José Valim Do?" Claude memory prompt shared by an Elixir developer, offering his actual advice which differed from the LLM's take on behaviours and abstractions.
https://litestream.io/ – Litestream - continuously streams SQLite changes to cloud storage like S3 for no-worry backups.
https://github.com/akoutmos/litestream – Litestream - an Elixir library wrapping Litestream for easy SQLite database backups, now at v0.5 with individual backup strategies under the Litestream.Strategy namespace.
https://marketing.erlef.org/events/malaga-unconf.html – EEF Málaga Unconference - a community-driven one-day pre-ElixirConf EU event on April 22, 2026, featuring Elixir talks, a Nerves workshop, and a GRiSP hardware workshop.
Elixir v1.20.0-rc.2 and rc.3 arrive with a faster compiler, better type inference, and improved incremental compilation; José Valim drops a low-key bombshell with Distributed Python running on top of the Erlang distribution with full Livebook integration; Chris McCord wows the community with fly_deploy, enabling zero-downtime hot code upgrades on Fly.io using the BEAM's ability to boot a peer VM inside a running VM; Discord shares a deep dive into how they added distributed tracing to their Elixir systems without melting everything; Popcorn v0.2 brings Elixir to the browser as a proper npm package; OpenAI's Symphony project — built in Elixir — sparks conversation about vibe-coded BEAM code and whether TypeScript tools can truly replicate what the BEAM offers, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://x.com/josevalim/status/2029221739285057565 – José Valim announced Elixir v1.20.0-rc.2 and rc.3 on X. The compiler finds more bugs, is ~10% faster, has a new interpreted mode (up to 5x faster), and improves incremental compilation for struct changes.
https://x.com/chris_mccord/status/2029630330630508929 – Chris McCord shared how the BEAM supports booting a :peer node as a VM within the VM, enabling "hot bluegreen" deploys on Fly.io — spinning up a new incoming VM and cutting over seamlessly while both peers stay clustered.
https://hex.pm/packages/fly_deploy – Hex package page for fly_deploy, Chris McCord's new library for zero-downtime hot code upgrades on Fly.io without restarts.
https://github.com/chrismccord/fly_deploy – GitHub repo for fly_deploy, which enables hot code upgrades for Elixir apps on Fly.io by suspending processes, swapping in new code, migrating state via code_change callbacks, and resuming — without downtime.
https://discord.com/blog/tracing-discords-elixir-systems-without-melting-everything – Discord engineering blog deep dive on how they added distributed tracing to their Elixir systems. They built an internal Transport library that wraps messages in an Envelope struct carrying serialized trace context, enabling gradual zero-downtime rollout.
https://dashbit.co/blog/distributed-python-livebook – Dashbit blog post detailing the Distributed Python integration in Livebook, including reproducible Python environments with uv, full Python cell support with autocompletion and docs on hover, zero-copy Apache Arrow, and interoperability with Elixir cells.
https://github.com/openai/symphony – OpenAI published Symphony, an AI agent orchestration repo built primarily in Elixir (96.1%). It uses Elixir for supervising long-running processes, hot code reloading, and its active ecosystem.
https://x.com/peregrine/status/2029289900428705935 – Jason Stiebs noted that OpenAI's Symphony uses a hand-rolled gen_tcp HTTP server rather than established libraries like Ranch or Mint, suggesting the project may be vibe-coded.
https://rivet.dev/cloud/ – Rivet Cloud, a platform attempting to bring Actor-model-like benefits to TypeScript without using the BEAM.
https://x.com/NathanFlurry/status/2030047986575921351 – Nathan Flurry of Rivet announced they are bringing "the benefits of Elixir to TypeScript" — though critics note it lacks true processes, links, monitors, and supervision trees.
News includes José Valim publishing a deep technical post on Elixir's type system shift from DNFs to Lazy BDDs with eager literal intersections — cutting worst-case type checking from 10 seconds to 25ms — alongside a more approachable Dashbit post on type systems as leaky abstractions, Zach Daniel's new usage_rules feature for shipping versioned AI skills inside Hex packages, Oban Pro teasing a major Workflow + Web UI overhaul with graph views and progress tracking, MDEx v0.11.6 landing with a new :codefence_renderers option, Livebook Desktop adding Linux support, Flame On hitting v1.0.0 after four years, a new Gleam static site generator called Blogatto, a native Elixir Apache Spark Connect client with Livebook integration, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://erlef.org/ – David encourages companies that use Elixir to sponsor the Erlang Ecosystem Foundation, emphasizing it's a community responsibility and any amount helps.
https://x.com/zachsdaniel1/status/2027078981451690355 – Zach Daniel announces a new usage_rules feature that supports copying skills from packages, allowing package authors to ship and version AI skills for projects.
https://bsky.app/profile/oban.pro/post/3mg5yd4lul22a – Sorentwo teases upcoming Oban Pro Workflow + Web improvements, including a new Workflows search page with progress bars, stats, filters, and a graph view of workflow nodes.
https://github.com/dbernheisel/hex-cmp – David's new Neovim plugin that autocompletes hex.pm packages and versions in mix.exs files using blink.cmp and Treesitter, with lightweight LSP hover docs.
https://blogat.to/ – Blogatto is a new Gleam static site generator framework built on Lustre and Markdown, generating blogs, RSS feeds, sitemaps, and more from a single config.
https://spark.apache.org/ – Apache Spark™ official site — a multi-language engine for data engineering, data science, and machine learning on single-node or cluster environments.
294: Compile Times, Language Servers, and Python, Oh My!
03 Mar 2026
00:30:57
News includes the long-awaited Expert LSP releasing its first release candidate — the unified Elixir Language Server merging Lexical and Next LS — with monorepo support and early adopter feedback already glowing, José Valim shares exciting Elixir v1.20 compile time improvements bringing up to 20% faster compilation on OTP 29 and up to 5x faster with a new interpreted mode, Livebook Desktop makes the move to Tauri bringing Linux support and plans for a reusable Tauri+Elixir package, a new erlang-python library arrives for running Python ML/AI code from Elixir with true parallelism, Nx v0.11 lands with sharding support and MPS backend improvements, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://github.com/elixir-lang/expert – GitHub repository for Expert, the unified Elixir Language Server. Includes features like compiler diagnostics, completions, go-to-definition, monorepo support, and more.
https://github.com/benoitc/erlang-python – GitHub repository for erlang-python, which lets you run Python code from Erlang or Elixir with true parallelism, async/await support, and seamless integration.
https://x.com/josevalim/status/2024464732535521316 – José Valim announces that Livebook Desktop has been converted to Tauri, adding Linux support and plans to extract the Tauri integration as a reusable package.
https://x.com/josevalim/status/2024538544685851099 – José Valim shares a detailed update on Elixir v1.20 compile time improvements — ~10% faster on OTP 28, ~20% on OTP 29, and up to 5x faster with a new interpreted mode.
https://github.com/josevalim/langcompilebench – Repository created by José Valim to benchmark and compare compilation times across BEAM languages (Elixir, Erlang, Gleam) with open, public measurements.
https://github.com/erlang/otp/pull/10615 – Erlang/OTP PR that optimized module loading by reducing single-core lock usage, improving both compilation and boot times by ~10%.
https://x.com/josevalim/status/2025930710482120825 – José Valim announces an upcoming Elixir v1.20 improvement that drastically reduces incremental recompilation when struct fields are added or removed.
https://x.com/polvalente/status/2024641604313571328 – Paulo Valente announces the release of Nx v0.11, with new features including faster evaluated mode, Nx.runtime_callback, sharding support, and MPS support in Torchx.
https://github.com/ash-project/usage_rules – The usage_rules package reached v1.0 and beyond (now at v1.2.1). It synchronizes LLM rules files with your dependencies and is independent of Ash.
https://github.com/LoamStudios/courgette – GitHub repository for Courgette, a LiveView-inspired TUI framework for Elixir featuring a Flexbox layout engine, stateful components, incremental rendering at ~60 FPS, and zero dependencies.
News includes Hackney v3.1.0 dropping ~1.3 million lines of C code in favor of a pure Erlang QUIC implementation for HTTP/3 support, Benoît Chesneau's Hornbeam 1.0.0 bringing Erlang-powered hosting to Python web apps with performance that puts Gunicorn to shame, the Easel library offering a Canvas 2D drawing API for Elixir that works with Phoenix LiveView and native WX windows, Hologram v0.7.0 hitting a major milestone with client-side Erlang runtime coverage jumping from 34% to 96%, and more!
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https://x.com/benoitc/status/2023675416465023212 – Benoît Chesneau announces Hackney v3.1.0, a simple HTTP client for Erlang, now with HTTP/3 support via pure Erlang — no C compiler, CMake, or Go required.
https://github.com/benoitc/hornbeam – Hornbeam GitHub repository. Run Flask, FastAPI, and Django on the BEAM with Erlang's concurrency, resilience, and distribution.
https://hornbeam.dev/ – Hornbeam landing site — "When Python Meets Erlang." Highlights AI readiness, distributed clustering, supervisors, and no GIL concerns.
https://x.com/benoitc/status/2024066551092031773 – Follow-up post announcing Hornbeam v1.3.0, achieving 68k req/s — 2x faster than Uvicorn/Gunicorn — with new NIF modules for direct C-level marshalling.
https://github.com/ivarvong/pyex – PyEx — run LLM-generated Python inside your Elixir app with no containers, no ports, and no process isolation. Related project showing BEAM/Python integration.
https://github.com/jeregrine/Easel – Easel GitHub repository. Supports layers, animations, event handling, templating, and both LiveView and Wx rendering backends.
https://easel-demo.fly.dev/ – Live demo of Easel running on Fly.io — all computations done in Elixir, sent over WebSocket to a canvas.
https://en.wikipedia.org/wiki/Boids – Background on Boids, the artificial life program simulating flocking behaviour that inspired Easel's visual simulation capabilities.
Tidewave now supports OpenCode, and is deprecating "Bring your own key" support in favor of Codex, Claude Code, or OpenCode for richer agent features like MCPs, skills, planning, and compaction.
TNews includes Mark announcing his new Sagents library for building AI agents with human-in-the-loop oversight and real-time debugging capabilities, José Valim's blog post on why Elixir is the best language for AI based on recent completion rate studies, LiveDebugger v0.6.0 with custom events and enhanced exception handling, an analysis of Elixir developer salaries showing US senior remote positions at ~$163k median, Peter Ullrich's new MCP server implementation for Elixir, a revamp of Lua for Elixir with improved tooling, Elixir Hub's new events section for finding conferences and meetups, and a discussion on whether AI advancements like Opus 4.6 are eliminating the SDK advantage of more popular languages, and more!e
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https://github.com/sagents-ai/sagents – Mark announces Sagents - "Sage Agents" library combining wisdom with LLM-based agents, featuring HITL, SubAgents, GenServer architecture, Phoenix.Presence integration, middleware system, and more
https://github.com/sagents-ai/sagents_live_debugger – Phoenix LiveView dashboard for debugging and monitoring Sagents agents in real-time with visibility into agent execution, message history, tool calls, and events
https://github.com/sagents-ai/agents_demo – Demonstration Phoenix LiveView application showcasing Sagents's multi-conversation agent architecture with isolated AI agents and real-time updates
https://hexhire.io/elixir-developer-salaries – Analysis of Elixir job market and salary rates showing US senior remote median at ~$163k, with limited junior positions and wide variation in European rates
https://elixir-hub.com/events – Elixir Hub events section for finding conferences, meetups, and workshops with free event listing
Discussion on whether AI advancements like Opus 4.6 change the game for Elixir adoption, potentially eliminating the advantage of languages with official SDKs
News includes José Valim announcing another major compilation time improvement coming to Elixir v1.20 achieving 2x speedup while adding the type checker, a new alternative Erlang syntax called Telelang, Membrane's YOLO plugin bringing AI-powered object detection to video pipelines, Christian Alexander's Claude Skill for automating dependency updates through AI conversation, José Valim's experimental PR Quiz tool that transforms code reviews into interactive learning experiences inspired by Anthropic research on AI coding skills, legal changes to US SBOM requirements, AshPartition for database partitioning, building containers directly from Erlang/Elixir code, and the complete ElixirConf EU speaker lineup featuring 39 speakers plus keynotes from José Valim and Chris McCord!
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https://x.com/josevalim/status/2017671777187438683 – José Valim shared another compilation time improvement coming to Elixir v1.20 RC. Livebook compilation time went from 6.4s to 3.2s over 3 years, achieving 2x improvement while adding the type checker. Much of this came from removing single core bottlenecks for better CPU utilization.
https://telelang.org/ – Telelang - an alternative syntax for Erlang that compiles to Erlang code without changing semantics or standard library.
https://github.com/fancycade/tele – GitHub repository for Tele. Marked as experimental and unstable, but demonstrates an interesting approach to creating a different syntax and parser without deeper changes.
https://x.com/josevalim/status/2018350969545736254 – José Valim shares a vibe-coded MCP App built over the weekend that turns pull request reviews into interactive learning experiences inside Claude Desktop.
https://github.com/tidewave-ai/pr-quiz – PR Quiz open source project - turns pull request reviews into interactive learning experiences with a 7:25 minute demo video.
https://www.anthropic.com/research/AI-assistance-coding-skills – Anthropic research on "How AI assistance impacts the formation of coding skills" showing junior developers who fully relied on AI learned less. Emphasizes that cognitive effort and getting stuck is important for mastery.
https://www.elixirconf.eu/#keynotes – ElixirConf EU speaker list is complete with 39 speakers plus keynotes from José Valim and Chris McCord. Conference in Málaga, Spain (and virtual) on April 23-24. In-person tickets €539 (early bird), virtual €129.
News includes Elixir v1.20.0-rc.1 with important type system improvements, not one but two new Elixir-native Bash interpreters for seamless interop, LiveCapture bringing zero-boilerplate storybooks to LiveView components, Christian Alexander's DurableObject library for persistent actors inspired by Cloudflare, Postgres getting a game-changing BM25 text search extension that rivals Elasticsearch, a breakthrough RAG approach that eliminates vector databases entirely while achieving 98.7% accuracy, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
https://github.com/VectifyAI/PageIndex – PageIndex - vectorless, reasoning-based RAG system using hierarchical tree index for long professional documents
News includes a groundbreaking effort to port Erlang to QNX for automotive systems, ExDoc 0.40.0 adding LLM-friendly features, Permit.Phoenix v0.4.0 improving authorization workflows, Oban Pro launching for Python with Elixir interop, new LLM evaluation tools Tribunal and Beamlens that bring AI-powered testing and self-diagnosing supervision trees to the BEAM, Tidewave crossing 100k ARR just 5 months after launch, Guillaume Duboc defending his PhD thesis on typing Elixir with set-theoretic types, and more!
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News includes Elixir's 15th anniversary celebrated with an early v1.20 release candidate featuring type inference for all constructs, Chris McCord's launch of Sprites.dev for hardware-isolated execution environments at Fly.io, MDEx v0.11.0 with a new website and Phoenix Components support, Ex_cldr 3.0 announced as Localize with runtime-only configuration, Gust workflow engine as an Airflow alternative built in Elixir, LiveDebugger v0.5.0 with Dead LiveViews debugging, LiveVue v1.0 stable release bringing Vue.js integration to Phoenix LiveView, Goatmire conference returning in 2026, and more!
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January 9th, 2026 marked 15 years since Elixir's first commit
News includes Arcana, a new RAG library for Phoenix that adds vector search and AI Q&A using Postgres and pgvector, a JavaScript embedding library called MquickjsEx that brings MicroQuickJS to Elixir processes, LiveDebugger v0.5.0 with support for LiveView Streams, DaisyUI officially supporting Phoenix in their commercial dashboard templates, Durable - a new workflow engine similar to Temporal, José Valim teasing beautiful type system improvements, the Hologram project receiving an EEF stipend, Jido 2.0 demonstrating swarms of 1,575 agents indexing code in 7 seconds, ElixirConf EU 2026 announcing José Valim and Chris McCord as keynote speakers, and more!
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https://daisyui.com/store/nexus/ – DaisyUI Nexus Dashboard store page - commercial dashboard template supporting multiple frameworks including Phoenix
https://github.com/wavezync/durable/ – Durable workflow engine GitHub repository - a resumable workflow execution engine for Elixir similar to Temporal/Inngest
News includes a compelling story of transitioning from NextJS to Phoenix and Ash in just two weeks, Credo 1.7.15 with massive performance improvements dropping runtime from 33 to 9 seconds on large codebases, Soothsayer library updates for time series forecasting, Torchx now running on Apple Metal, an EEF case study on how DNSimple uses Erlang to handle hundreds of billions of DNS queries monthly, the first ever GleamLang conference announced for 2026, and more! After the news, we take a retrospective look at 2025, reviewing notable events and trends throughout the year.
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News includes Software Mansion pushing the boundaries of Popcorn by running LiveView locally in the browser using WebAssembly, the Programming Nerves book by Alex Koutmos and Hugo Baraúna launching in beta, a new minimalist Stripe integration library called PinStripe, Beam Bots announced for resilient robotics on the BEAM, Saša Jurić’s thought-provoking Goatmire talk now available online, Tidewave.ai adding Vue.js support with impressive performance improvements, LiveTable v0.4.0 released with powerful data table features, Supabase announcing Multigres for horizontally scalable Postgres, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
News includes José Valim announcing that Elixir v1.20 is well underway with full-type inference possibly landing before the end of the year, Gleam v1.14.0-rc1 with fault tolerant type inference and language server improvements, mjml_eex v0.13.0 for creating beautiful email templates, Dashbit's new nimble_zta library for zero trust authentication extracted from Livebook, Björn Gustavsson's ElixirConf EU talk on BEAM history and internals with insights on a potential BEAM v2 runtime 5-10 years away, GoatMire conference videos being published, and more!
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Show update - podcast is now also on YouTube with images of blog posts, projects, and articles displayed during discussions
News includes celebrating Erlang's 27th birthday as open source, results from the Elixir Hub 2025 survey showing strong community growth with over 1000 participants, a fun Govee Lights control library, a new data_migration package for LiveDashboard, Tidewave.ai's impressive accessibility testing and fixing capabilities showing 2x better performance than Claude Code standalone, critical React Server Components remote code execution vulnerabilities affecting Next.js, and Zig's dramatic departure from GitHub citing Microsoft's AI obsession and declining service quality, and more!
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Happy Birthday to Erlang - celebrating 27 years as Open Source
News includes cutting-edge research from José Valim and Guillaume Duboc on the data structures powering Elixir's type system that made v1.19 both stronger and faster than v1.18, Phoenix LiveView v1.1.18 with new conveniences including view transition API support, LiveDebugger's biggest release yet with improved assigns inspection and resource monitoring, a new Nx feature enabling Python-Elixir model integration, LangChain library updates, Hologram's creator seeking sustainable sponsorship after 3 years of full-time development, WebGPU now supported in all major browsers bringing desktop-class GPU performance to the web, and more!
https://paraxial.io/ – Paraxial.io is sponsoring today's show! Sign up for a free trial of Paraxial.io today and mention Thinking Elixir when you schedule a demo for a special offer.
News includes Erlang OTP 28.2 release with improvements across the runtime and standard library, a significant update to the Elixir "whois" library for querying domain registration information, Tidewave Web adding Figma support for designer integration, a new KQL (Kibana Query Language) parser library from TvLabs, the Erlang Ecosystem Foundation now publishing vulnerability data directly to OSV.dev, and more! We also have an in-depth discussion about the difference between handling errors and designing for failure, exploring how Elixir and the BEAM give you the ability to plan for system recovery from unexpected exceptions using primitives like supervisors.
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https://x.com/josevalim/status/1991140574540251590 – José Valim's post about CloudFlare outage discussing the difference between handling errors vs designing for failure and how Erlang/Elixir's approach provides system-level mechanics for resilience
News includes Elixir 1.19.3 point release with enhanced regular expression support in config files, Tidewave Web adding support for Claude Code and OpenAI Codex agents, Hologram's JavaScript porting initiative seeking community help to complete their browser runtime, a new pg_large_objects library for streaming large binary data with Postgres, the experimental playwright_ex library for browser automation, and the latest TIOBE Index showing C# nearly displacing Java while Elixir ranks at #38, and more!
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News includes Chris McCord's FlyDeploy for zero-downtime hot code upgrades on Fly.io, the Elixir GRPC library update with interactive Livebook documentation, ErrorTracker v0.7.0 with LiveView 1.0 support, a new AI-powered terminal emulator called exterm_ai, Horde joining a new GitHub organization focused on distributed systems, SmartLogic's case study using Elixir for real-time air quality monitoring, GitHub's 2025 Octoverse report showing TypeScript becoming the most used language, and Mark shares his detailed AI development workflow that compresses 2 weeks of work into 2 days by using coding agents as a Software Architect, and more!
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https://github.com/chrismccord/fly_deploy – Chris McCord releases FlyDeploy - enables hot code upgrades for Elixir applications on Fly.io without restarts or downtime
https://github.com/metehan/exterm_ai – exterm_ai - an advanced web-based terminal emulator with built-in AI assistance powered by OpenRouter, like a web-based warp.dev
https://github.com/elixir-horde – New @elixir_horde GitHub organization focused on distributed systems, fault-tolerant supervision, and global process registration
https://smartlogic.io/case-studies/icrt – SmartLogic case study on using Elixir to help researchers with real-time air quality monitoring and alerts for residents
Mark shares his AI development workflow using Claude Code and Cursor, going from PRD to implementation plan to working code with tests in 2 days instead of 2 weeks
News includes the Curiosum Elixir survey closing soon, ReqLLM reaching 1.0 with standardized LLM API support across multiple providers, Isaac Yonemoto's Codicil library bringing semantic code understanding to AI assistants through MCP, José Valim teasing Tidewave Web expansion to support Django, Rails, Next.js and other popular frameworks, phoenix_test_playwright adding browser pooling for improved performance, Peter Ullrich's deep dive into using Postgres WAL for database change notifications at scale, and more!
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https://github.com/agentjido/req_llm – ReqLLM GitHub repository - went through 8 RCs to reach 1.0, includes Google Vertex AI, AWS Bedrock support, and more
https://github.com/E-xyza/codicil/ – Codicil - Elixir library providing AI coding assistants with deep semantic understanding of your codebase through the Model Context Protocol
Isaac will be speaking about Codicil at ExMex conference (which will have concluded by episode release)
https://x.com/josevalim/status/1985408862690685315 – José Valim teases upcoming Tidewave Web expansion to support multiple frameworks including Django, FastAPI, Flask, Next.js, Phoenix, Rails, and React + Vite
News includes a powerful new HexDocs search engine built in Gleam that lets you search across all your project dependencies with mix hex.search, Software Mansion's interactive Elixir Language Tour that runs in the browser via WebASM, Paulo Valente's breakthrough getting Stable Diffusion running on Mac GPUs through EMLX, lessons learned from the AWS outage that left smart beds stuck and overheating, Chrome DevTools' new MCP server for AI coding assistants, and more!
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News includes the major release of Elixir v1.19 with enhanced type checking, broader type inference, and up to 4x faster compilation for large projects, plus the first OpenChain certification bringing more transparency to the BEAM ecosystem. We also cover the Mishka Chelekom Phoenix LiveView component library update for Tailwind 4 support, visual improvements coming to ExDocs admonition blocks, Anthropic's new ClaudeCode Web that lets you code directly in the browser with GitHub integration, a critical Redis security vulnerability with a perfect 10.0 severity score affecting hundreds of thousands of servers, and more!
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News includes the release of Elixir v1.19.0-rc.2 with impressive deps compile times and optimized set-theoretic type checking, a timeline update on typed structs arriving by next year, the new "mix help app:phoenix" command for building AI Agent context, gRPC library v0.11.0 with client load balancing, ReqCassette for recording test requests, German Velasco's video walkthrough of Phoenix's AGENTS.md file, Brian Cardarella's insights on the influx of AI-generated codebases needing rescue, Elixir Observer's major updates with categories and semantic search, Chris McCord's demonstration of isolated AI coding sandboxes on Fly Machines, NPM's new security changes for token management, and more!
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Remote.com confirmed their codebase compiles 55% faster on v1.19 with type checking still ~1ms/module on average
José and Guillaume Duboc went beyond current state-of-the-art to optimize key operations for set-theoretic type checking, articles to be published later
News includes the release of Elixir 1.19.0-rc.1 with OTP 28.1+ compatibility and impressive 2.3x faster dependency compilation, JetBrains adopting the open Agent Client Protocol for AI coding agents, an update on LiveView Native's uncertain future, major improvements to the MDex Markdown library including streaming support and Quill delta conversion, Curiosum's comprehensive blog post on their Permit authorization library, Elixir gaining an AT Protocol library called Aether for Bluesky integration, Supabase raising $100 million at a $5 billion valuation while building on Elixir, Ruby community fracturing over gem server ownership controversies, security concerns about AI agents escalating privileges across systems, and more!
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https://elixirforum.com/t/elixir-v1-19-0-rc-1-released/72781/3 – Elixir 1.19.0-rc.1 released with OTP 28.1+ compatibility, struct update syntax adapted into type assertion operator, improved dependency compilation, OptionParser regex support, and Unicode 17.0.0 support
https://zed.dev/blog/jetbrains-on-acp – Details on ACP, an open standard for seamless integration of AI coding agents with any code editor or IDE using JSON-RPC
News includes Chris McCord releasing a shell-based web browser tool for LLMs extracted from phoenix.new, a new schema validation library called Zoi inspired by JavaScript's Zod, AshDiagram for generating beautiful visualizations of AshFramework applications, the Erlang Ecosystem Foundation's progress toward EU Cyber Resilience Act readiness with their Ægis security initiative, PostgreSQL 18.0 release with Index Skip Scans and async I/O improvements, Anthropic's Claude Sonnet 4.5 release, IEEE's Top Programming Languages 2025 list and a discussion about whether AI-assisted coding means the end of programming language rankings, and more!
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https://github.com/chrismccord/web – Web - shell command for simple LLM web browsing that converts web pages to markdown, executes js, and interacts with pages
https://hexdocs.pm/zoi/Zoi.html – Zoi - a new schema validation library for Elixir inspired by the popular JavaScript library Zod
News includes the release of Vault, a lightweight library for process-scoped global data storage that uses the Process Dictionary for immutable context sharing, OTP 28.1 with quantum-resistant ML-DSA cryptographic support and enhanced DNS resolver capabilities, Tidewave Teams launching and Tidewave's new TODO support, AshTypescript for automatic TypeScript type generation from Ash resources with impressive frontend integration demos, exciting Elixir 1.19-rc.0 performance improvements showing dependency compilation speeds cut by more than half on multi-core systems, conference updates from the successful Goatmire Elixir 2025 event, and the ExMex Elixir conference opening ticket sales for their November Austin event, and more!
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https://github.com/dimamik/vault – GitHub repository for Vault - provides immutable data storage within a process subtree using Process Dictionary
https://github.com/erlang/otp/releases/tag/OTP-28.1 – OTP 28.1 release with support for compiled Regular Expression export/import, DNS resolver enhancements, and ML-DSA quantum-resistant algorithm support
News includes an interactive test runner called mix_test_interactive that brings Jest-style testing to ExUnit, TrieHard - a blazing fast Rust-powered Trie implementation for search and autocomplete functionality, ReqLLM - a new unified library for LLM interactions built on Req, Hologram v0.6.0 bringing production-ready features to the pure Elixir full-stack framework, the successfully funded Rebar4 project promising better OTP integration, and more!
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News includes a Kickstarter campaign to fund Rebar4 development with the goal of making it an official part of the OTP build system, Tidewave Web adding React support and OpenRouter integration for accessing multiple LLM models, Phoenix 1.8.1 release fixing AGENTS.md generation issues, ElixirConf US 2025 videos being slowly released on YouTube including keynotes from José Valim and Chris McCord, an AshFramework security advisory about before_transaction hooks, and more!
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News includes the release of Expert, the new official Elixir LSP that's already supported by Zed editor, Tidewave Web getting its first major update with editor integration and notifications, Paulo Valente's handoff library v0.2.0 for distributed graph execution across BEAM nodes, LiveDebugger v0.4.0 with new inspect mode and improved features, fascinating research showing Elixir performing exceptionally well in LLM code generation benchmarks (scoring highest among all tested languages), the announcement that next ElixirConf US will be in Chicago, and a critical security alert about a new type of developer dependency attack that weaponizes AI CLI tools, and more!
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News includes a new library called Lotus and LotusWeb that provides a safe, read-only environment for running SQL analytics queries with organized storage for saved queries. After the news, we had an interview with Mateusz Front about the Popcorn project, which enables Elixir to run in WebAssembly (WASM) in the browser courtesy of AtomVM. We dig into how it works, what it's capable of doing, and where it could go in the future!
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https://wasi.dev/ – WebAssembly System Interface (WASI) is a group of standards-track API specifications for software compiled to the W3C WebAssembly (Wasm) standard.
News includes the exciting announcement of Tidewave Web, a new AI-powered service that runs locally in your development environment with an AI chat sidebar that can directly interact with and modify your Phoenix and Rails applications. José Valim joins us for a deeper dive into Tidewave as well! We also cover a comprehensive new ElixirLang blog post about interoperability in 2025 that explores all the ways Elixir and BEAM can work with other languages and runtimes, from traditional NIFs and Ports to newer options like AtomVM for microcontrollers, Popcorn for browser deployment, and integrations with Rust, Zig, Python, and C++. Additionally, Livebook Teams has officially launched out of beta with SSO support and enterprise features, Oban v2.20.0 brings job updating capabilities and improved plugin supervision, PhoenixAnalytics v0.4.0 adds 12 new themes and drops the DuckDB requirement, LiveView v1.1.7 introduces a new stream_async function, and more!
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https://livebook.dev/teams/ – Livebook Teams landing page - deploy Elixir notebooks as internal apps with SSO and Google Workspace support, $30/editor pricing
News includes the official release of Phoenix 1.8.0 with exciting new features like dark mode themes, streamlined generators, magic links in phx.gen.auth, and AGENTS.md for LLM-assisted development. ElixirLS v0.29.2 with call hierarchy provider and MCP server integration, the new Torus library for seamless PostgreSQL search with Ecto, ThinkingElixir courses becoming completely free and open, a new Elixir Hub website centralizing community resources, LiveTable v0.3.1 updates for dynamic LiveView tables, and more!
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Phoenix 1.8.0 features include AGENTS.md for LLM development, themes with dark mode, streamlined generators, phx.gen.auth magic links, revamped guides, and scopes
https://thinkingelixir.com/ – ThinkingElixir courses (Pattern Matching and Code Flow) are now completely free and open, no longer requiring login. Site converted from WordPress to static hosting.
265: LiveView 1.1 Goes Live and Stack Overflow Results
12 Aug 2025
00:42:33
News includes Phoenix LiveView v1.1 being released with exciting new features like colocated JavaScript, portals for teleporting content, keyed comprehensions, and improved change tracking, Stack Overflow Survey 2025 results showing Elixir as the third most admired language and Phoenix as the most admired web framework for the third year running, Peter Solnica announcing a new high-level relation abstraction library called drops_relation built on top of Ecto, The Primeagen (a popular YouTube dev influencer) switching to Elixir and showcasing pattern matching features, Software Mansion organizing Global Elixir Meetups around the world for September 2025, ElixirConf US 2025 tickets available with a discount code, and more!
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News includes Phoenix v1.8 shipping with an AGENTS markdown file for new apps to enhance coding agent experiences, Popcorn bringing Elixir to the browser through WebAssembly with no installation required, LiveVue v0.6.0 with 90% payload size reduction through JSON Patch operations, an awesome LiveView development tip for hot-reloading code changes while preserving LiveView state, MDEx v0.8 adding decorators support for enhanced code block styling, Hologram v0.5.0 delivering major performance improvements with milliseconds to microseconds execution times, ElixirConf US 2025 tickets available with our discount code, and a discussion about how AI-generated code is creating new bottlenecks in QA and code review processes, and more!
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https://x.com/josevalim/status/1948826989357367698 – José Valim announces Phoenix v1.8 will ship with an AGENTS markdown file for new apps, ensuring teams using coding agents have an outstanding experience out of the box
263: Thinking Elixir 263: BEAM Scales from Nano to BBC Big
29 Jul 2025
00:30:27
News includes the BEAM runtime fitting into just 16MB for the GRiSP Nano prototype, the BBC using Elixir to serve most of their web and mobile traffic, GenStage's pull-based design delivering 50% performance improvements, a new PDF data extraction library that leverages Python through PythonX, AppSignal's guide to deploying Phoenix with Kamal, an Elixir School lesson on embedding Lua in applications, Peter Solnica's new inflection library for word transformations, Fly.io announcing Docker Compose compatibility for multi-container deployments, and the full ElixirConf 2025 agenda going live with discount tickets available, and more!
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News includes Phoenix 1.8.0-rc.4 and LiveView 1.1.0-rc.3 with igniter upgrader support, new libraries including deps_changelog and the Hog process debugging tool by Alex Koutmos, Fly.io's announcement of managed Postgres, an incredible conference talk about Waterpark - a healthcare system built on the BEAM that achieved 100% uptime for 5 years and running, tips on using Elixir compiler directives for function inlining, the full ElixirConf US 2025 schedule with keynotes from José Valim and Chris McCord, CodeBeam Europe speaker announcements, and more!
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News includes Phoenix LiveView 1.1.0 release candidates featuring change tracking in comprehensions by default and TypeScript annotations, José Valim's inspiring DevLabs interview about building authentic tools and fostering healthy ecosystems, Matthew Sinclair's comprehensive post outlining 9 compelling reasons to choose Elixir, Peter Solnica's exciting teaser about rebuilding rom-rb in Elixir, Igniter's growing adoption with 45 packages now using it for simplified installation, ElixirConf 2025 US tickets available with ThinkingElixir discount, Figma's S-1 filing revealing their staggering $300,000 daily AWS costs, and more!
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News includes LiveDebugger v0.3.0 with enhanced debugging capabilities for Phoenix LiveView including redirect following and dead process state browsing, Oban 1.6 featuring sub-workflows and cascading workflows, YOLO v0.2.0 bringing YOLOX support for faster image detection in Elixir, a discussion on the importance of testing and how AI tools are making test creation easier, helpful LiveView tips for opening unique URLs in new tabs, and progress updates on the new Expert LSP project for improved Elixir language server capabilities, and more!
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