274: Protocols, Permissions, and Performance

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! Show Notes online - http://podcast.thinkingelixir.com/274 (http://podcast.thinkingelixir.com/274) 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://elixirforum.com/t/elixir-v1-19-0-rc-1-released/72781/3 (https://elixirforum.com/t/elixir-v1-19-0-rc-1-released/72781/3?utm_source=thinkingelixir&utm_medium=shownotes) – 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://bsky.app/profile/stefanluptak.com/post/3m2hoz4ankk2c (https://bsky.app/profile/stefanluptak.com/post/3m2hoz4ankk2c?utm_source=thinkingelixir&utm_medium=shownotes) – Elixir 1.19.0-rc.1 dependency compilation is 2.3x faster on MacBook Pro M1 Max compared to 1.18.4 https://nitter.net/zeddotdev/status/1975241285796552816 (https://nitter.net/zeddotdev/status/1975241285796552816?utm_source=thinkingelixir&utm_medium=shownotes) – JetBrains adopts Agent Client Protocol (ACP) https://zed.dev/blog/jetbrains-on-acp (https://zed.dev/blog/jetbrains-on-acp?utm_source=thinkingelixir&utm_medium=shownotes) – Details on ACP, an open standard for seamless integration of AI coding agents with any code editor or IDE using JSON-RPC https://nitter.net/bcardarella/status/1973369656829166004 (https://nitter.net/bcardarella/status/1973369656829166004?utm_source=thinkingelixir&utm_medium=shownotes) – Brian Cardarella comments that LiveView Native as a concept is likely dead in the water https://nitter.net/josevalim/status/1975153256524312921 (https://nitter.net/josevalim/status/1975153256524312921?utm_source=thinkingelixir&utm_medium=shownotes) – José Valim's response on LiveView Native direction https://bsky.app/profile/leandrocp.bsky.social/post/3m2enmdr7e225 (https://bsky.app/profile/leandrocp.bsky.social/post/3m2enmdr7e225?utm_source=thinkingelixir&utm_medium=shownotes) – MDex library update with Quill deltas support, streaming Markdown, and improved IEx visualization https://hexdocs.pm/mdex/changelog.html (https://hexdocs.pm/mdex/changelog.html?utm_source=thinkingelixir&utm_medium=shownotes) – MDex changelog with full details on updates https://quilljs.com/docs/delta (https://quilljs.com/docs/delta?utm_source=thinkingelixir&utm_medium=shownotes) – Quill delta format documentation https://quilljs.com/playground/snow (https://quilljs.com/playground/snow?utm_source=thinkingelixir&utm_medium=shownotes) – Quill playground and license information https://www.curiosum.com/blog/authorization-access-control-elixirconf (https://www.curiosum.com/blog/authorization-access-control-elixirconf?utm_source=thinkingelixir&utm_medium=shownotes) – Curiosum blog post about the Permit library for authorization and access control in Elixir, based on ElixirConf EU 2025 talk https://permit.curiosum.com/ (https://permit.curiosum.com/?utm_source=thinkingelixir&utm_medium=shownotes) – Permit library homepage https://github.com/curiosum-dev/permit/ (https://github.com/curiosum-dev/permit/?utm_source=thinkingelixir&utm_medium=shownotes) – Permit core library repository https://github.com/curiosum-dev/permit_ecto (https://github.com/curiosum-dev/permit_ecto?utm_source=thinkingelixir&utm_medium=shownotes) – Permit Ecto integration https://github.com/curiosum-dev/permit_phoenix/ (https://github.com/curiosum-dev/permit_phoenix/?utm_source=thinkingelixir&utm_medium=shownotes) – Permit Phoenix integration https://github.com/curiosum-dev/permit_absinthe (https://github.com/curiosum-dev/permit_absinthe?utm_source=thinkingelixir&utm_medium=shownotes) – Permit Absinthe integration https://gitea.fullstack.ing/Aether/aether (https://gitea.fullstack.ing/Aether/aether?utm_source=thinkingelixir&utm_medium=shownotes) – Aether - an AT Protocol library for Elixir, the technological basis of Bluesky https://atproto.com/ (https://atproto.com/?utm_source=thinkingelixir&utm_medium=shownotes) – AT Protocol official website https://docs.bsky.app/showcase (https://docs.bsky.app/showcase?utm_source=thinkingelixir&utm_medium=shownotes) – Bluesky showcase of custom applications built on AT Protocol https://nitter.net/kiwicopple/status/1974204868329157057 (https://nitter.net/kiwicopple/status/1974204868329157057?utm_source=thinkingelixir&utm_medium=shownotes) – Supabase announces Series E funding raise https://www.msn.com/en-us/money/markets/exclusive-supabase-raises-100-million-at-5-billion-valuation-as-vibe-coding-soars/ar-AA1NNo3o (https://www.msn.com/en-us/money/markets/exclusive-supabase-raises-100-million-at-5-billion-valuation-as-vibe-coding-soars/ar-AA1NNo3o?utm_source=thinkingelixir&utm_medium=shownotes) – Supabase raises $100 million at $5 billion valuation, with community investment round planned https://gem.coop/ (https://gem.coop/?utm_source=thinkingelixir&utm_medium=shownotes) – New cooperative Ruby gem server launched as alternative to rubygems.org Ruby community fractures over bundler gem ownership controversy involving DHH and corporate investors like Shopify https://nitter.net/wunderwuzzi23/status/1975180021317956040 (https://nitter.net/wunderwuzzi23/status/1975180021317956040?utm_source=thinkingelixir&utm_medium=shownotes) – AI agents can collaborate and modify each other's settings to escalate privileges https://embracethered.com/blog/posts/2025/cross-agent-privilege-escalation-agents-that-free-each-other/ (https://embracethered.com/blog/posts/2025/cross-agent-privilege-escalation-agents-that-free-each-other/?utm_source=thinkingelixir&utm_medium=shownotes) – Detailed article on cross-agent privilege escalation vulnerabilities in AI agents, exploitable via prompt injection Do you have some Elixir news to share? 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