275: From Slop to Success?

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! Show Notes online - http://podcast.thinkingelixir.com/275 (http://podcast.thinkingelixir.com/275) Elixir Community News https://paraxial.io/ (https://paraxial.io/?utm_source=thinkingelixir&utm_campaign=thinkingelixir-oct2025) – 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://netter.net/josevalim/status/1975605515313979674 (https://netter.net/josevalim/status/1975605515313979674?utm_source=thinkingelixir&utm_medium=shownotes) – José Valim announces Elixir v1.19.0-rc.2 release https://elixirforum.com/t/elixir-v1-19-0-rc-2-released/72805 (https://elixirforum.com/t/elixir-v1-19-0-rc-2-released/72805?utm_source=thinkingelixir&utm_medium=shownotes) – Elixir Forum discussion of v1.19.0-rc.2, the last stop before official v1.19 release 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 https://nitter.net/josevalim/status/1975588421201715334 (https://nitter.net/josevalim/status/1975588421201715334?utm_source=thinkingelixir&utm_medium=shownotes) – New "mix help app:phoenix" command in Elixir v1.19 lists all modules with first paragraph of docs Great shortcut tool for building AI Agent context with brief module descriptions https://nitter.net/z_4seven/status/1975795139739357404 (https://nitter.net/z_4seven/status/1975795139739357404?utm_source=thinkingelixir&utm_medium=shownotes) – José Valim provides update on Elixir's typesystem status and timeline Plan shifted from typed structs by end of year to providing type inference of all constructs; typed structs might arrive by end of next year https://nitter.net/sleipni_r/status/1977901944329875893 (https://nitter.net/sleipni_r/status/1977901944329875893?utm_source=thinkingelixir&utm_medium=shownotes) – Elixir gRPC library v0.11.0 release announcement https://github.com/elixir-grpc/grpc (https://github.com/elixir-grpc/grpc?utm_source=thinkingelixir&utm_medium=shownotes) – Full-featured Elixir implementation of gRPC protocol with new Client Load Balancing following official specs https://hexdocs.pm/req_cassette (https://hexdocs.pm/req_cassette?utm_source=thinkingelixir&utm_medium=shownotes) – ReqCassette documentation - new Req library for recording and serializing real requests in tests https://github.com/lostbean/req_cassette/ (https://github.com/lostbean/req_cassette/?utm_source=thinkingelixir&utm_medium=shownotes) – ReqCassette GitHub repository, similar to ExVCR but works with Req and supports async tests https://github.com/parroty/exvcr (https://github.com/parroty/exvcr?utm_source=thinkingelixir&utm_medium=shownotes) – ExVCR library for comparison https://nitter.net/karlclement/status/1976677105980072238 (https://nitter.net/karlclement/status/1976677105980072238?utm_source=thinkingelixir&utm_medium=shownotes) – Karl Clement's Twitter thread asking who's using Elixir in production with numerous company replies https://nitter.net/germsvel/status/1976264583682625776 (https://nitter.net/germsvel/status/1976264583682625776?utm_source=thinkingelixir&utm_medium=shownotes) – German Velasco's new ElixirStream video walking through Phoenix 1.8 AGENTS.md file Full video is ~25 minutes or split into 12 shorter videos showing what AI typically gets wrong in new Phoenix apps https://www.youtube.com/watch?v=eBpDaUVxiII (https://www.youtube.com/watch?v=eBpDaUVxiII?utm_source=thinkingelixir&utm_medium=shownotes) – Episode https://www.youtube.com/shorts/fpbWpunfLVg (https://www.youtube.com/shorts/fpbWpunfLVg?utm_source=thinkingelixir&utm_medium=shownotes) – German Velasco's short video illustrating Ecto's datetime helpers https://nitter.net/bcardarella/status/1976217163754070372 (https://nitter.net/bcardarella/status/1976217163754070372?utm_source=thinkingelixir&utm_medium=shownotes) – Brian Cardarella shares insight about clients needing help finishing AI-generated apps DockYard seeing many AI slop generated apps that are nightmares to build on top of https://elixir-observer.com/packages/req (https://elixir-observer.com/packages/req?utm_source=thinkingelixir&utm_medium=shownotes) – Elixir Observer website updates by Mimiquate with better design and new features https://elixir-observer.com/categories (https://elixir-observer.com/categories?utm_source=thinkingelixir&utm_medium=shownotes) – New categories feature for package discovery (Actors, AI, Audio, Authentication, etc.) Categories include semantic search and show unreleased changes per package https://nitter.net/chris_mccord/status/1976813860742217754 (https://nitter.net/chris_mccord/status/1976813860742217754?utm_source=thinkingelixir&utm_medium=shownotes) – Chris McCord demonstrates creating isolated Claude Code sandbox instances on Fly Machines in 15 seconds Interesting approach for running AI agents fully isolated from local machine https://github.blog/changelog/2025-09-29-strengthening-npm-security-important-changes-to-authentication-and-token-management/ (https://github.blog/changelog/2025-09-29-strengthening-npm-security-important-changes-to-authentication-and-token-management/?utm_source=thinkingelixir&utm_medium=shownotes) – NPM announces new security changes including more frequent token rotation and Trusted Publishers (OIDC) support Response to recent supply chain attacks showing compromised long-lived tokens are critical vulnerability Do you have some Elixir news to share? 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