In this episode of the Thinking Elixir podcast, we sit down with Marcelo Dominguez, the driver behind the new "Blend" library, which assists Elixir library developers in testing their projects against multiple versions of dependencies. Marcelo explains the genesis of Blend and the inspiration from the Rubygem "appraisal." He discusses how Blend tackles the common headache of dependency version clashes and integrates smoothly with CI systems to isolate and report specific compatibility issues. We learn how it works under-the-hood and helps library maintainers more easily keep their promises of supporting a library used in diverse environments. We cover the motivations, complexities, and real-world applications of Blend and more!

Show Notes online - http://podcast.thinkingelixir.com/204

Elixir Community News

https://www.erlang.org/blog/highlights-otp-27/ – OTP 27 release highlights
https://www.erlang.org/news/170 – OTP 27 release news
https://github.com/erlang/otp/releases/tag/OTP-27.0 – OTP 27 release on GitHub
https://en.wikipedia.org/wiki/OCSP_stapling – OCSP stapling explained
https://x.com/chris_mccord/status/1791176778989424850 – Chris McCord shares upcoming Cockroach DB support in Phoenix 1.7
https://www.cockroachlabs.com/ – Cockroach Labs business solutions
https://github.com/cockroachdb/cockroach – CockroachDB GitHub project
https://www.cockroachlabs.com/docs/stable/licensing-faqs.html – Cockroach licensing FAQs
https://x.com/josevalim/status/1792642875454259243 – José Valim's tweet on Elixir's 12th birthday celebration
https://www.youtube.com/watch?v=epKeT8-hafE – YouTube livestream celebrating Elixir's 12th birthday
José teased that an Elixir v1.17 RC might be ready.
https://ew.com/pirates-of-the-caribbean-reboot-margot-robbie-movie-exclusive-8651023 – Pirates of the Caribbean reboot discussion... are we that old?
https://elixirforum.com/t/ash-framework-3-0/63488 – Ash Framework 3.0 release
https://www.reddit.com/r/elixir/s/HMUeyk8Ot3 – LiveToast discussion on Reddit
https://github.com/srcrip/live_toast – LiveToast GitHub project
https://toast.src.rip – LiveToast demo website
https://nerves-project.typeform.com/sotnn-2024
Nerves is an open-source platform for building and deploying production embedded systems using Elixir.
https://nerves-project.org/ – Nerves project website
https://fly.io/phoenix-files/my-favorite-new-liveview-feature/ – Explanation of the useful new LiveView feature JS.toggle_class.
ExDoc light mode possibly getting revamped.
https://hexdocs.pm/elixir/main/protocols.html – Example of current dark mode on ExDoc even in light mode.
https://erick.navarro.io/blog/simple-obs-client-in-elixir/ – Erick Navarro's post on controlling OBS using Elixir and websockets.
https://obsproject.com/ – OBS - Open Broadcaster Software

Do you have some Elixir news to share? Tell us at @ThinkingElixir or email at show@thinkingelixir.com

Discussion Resources

https://github.com/mimiquate/blend
https://rubygems.org/gems/appraisal – Blend was inspired by the Rubygem Appraisal
https://github.com/mimiquate/blend?tab=readme-ov-file#Motivation – Motivation for creating the Blend library
https://github.com/mimiquate/candlex
https://docs.github.com/en/actions/using-jobs/using-a-matrix-for-your-jobs
https://github.com/elixir-plug/plug_crypto/tags
https://github.com/rack/rack-attack
https://www.mimiquate.com/
https://github.com/elixir-plug/plug/blob/main/mix.exs#L54-L58 – Example of how multiple lockfiles are solved in Plug
https://github.com/surface-ui/surface/blob/main/.github/workflows/ci.yml#L54-L56 – Example of how multiple lockfiles are solved in Surface
https://github.com/sorentwo/oban/issues/1041 – Example of Oban issue from underlying dep version change
https://github.com/sorentwo/oban/commit/f8d3478c27aea56ab01fcc42f13668f4a3516564 – Example where Oban's Ecto version needed to lock to Ecto v3.10 to support materialized cte

Guest Information

Marcelo Dominguez
https://twitter.com/marpo60 – on Twitter
https://github.com/marpo60/ – on Github
https://www.mimiquate.com/ – Mimiquate agency that published Blend

Find us online

Message the show - @ThinkingElixir
Message the show on Fediverse - @ThinkingElixir@genserver.social
Email the show - show@thinkingelixir.com
Mark Ericksen - @brainlid
Mark Ericksen on Fediverse - @brainlid@genserver.social
David Bernheisel - @bernheisel
David Bernheisel on Fediverse - @dbern@genserver.social

204: OTP 27 and Blend for Lib Maintainers

Thinking Elixir Podcast