devenv 2.0: A Fresh Interface to Nix - devenv Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

👀👀👀

I really like devenv, this update looks great, updating now!

devenv.sh/blog/2026/03...

hopefully the mcp makes the experience a little smoother with claude too

devenv 2.0: A Fresh Interface to Nix - devenv Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

#Devenv 2 is out and it is impressive! 😁 Great work team. Going to ride through in some personal projects to test out.

I been moving to flake parts all my things, but still. Would like these dev shell benefits. 😎

tasks now show correct hierarchy in new tui

What broke?

I've really been enjoying the `devenv` tools for `nix` environments. I've also made it so that AI agents for projects by default must use the `devenv` environment. It's not hardened or anything, but it is nice to be able to destroy environments safely on demand.

We've open-sourced oauth-kit, batteries-included OAuth/OIDC client library for Rust with normalized user profiles and plug-and-play axum integration.

github.com/cachix/oauth...

Hmm, I don't see what's the issue. Would need to dig into it. Looks like substituters aren't working at all.

Looking to do some devenv bug cleaning, anything that's top priority for you?

what's in the substituters option (not trusted)? it should be cache.nixos.org

That's strange, it's not using cache.nixos.org.

$ nix config show

What kind of issues did you hit? Maybe I can help

That's the path we're down into, we make decisions for what's best.

watch around devenv.sh for this :)

devenv 1.11: Module changelogs and SecretSpec 0.4.0 - devenv Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

devenv 1.11 is here.

- module changelogs for communicating breaking changes
- profile configuration in devenv.yaml
- secretspec 0.4.0 with multiple provider support and file-based secrets

devenv.sh/blog/2025/11...

No

Play with devenv.new to see how easy life can be :)

Ah yeah, for that you need WSL. One day though :)

devenv fixes both :)

This is a new interface that makes Nix pleasant to use. I'd be happy to read a bad review from you if you think so :)

devenv Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

Have you tried devenv.sh :)

"devenv is objectively good, even if nix is cursed" - my colleague

devenv 1.10: monorepo Nix support with devenv.yaml imports - devenv Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

devenv.sh/blog/2025/10...

GitHub - domenkozar/redland: A Wayland screen color temperature adjuster with automatic day/night cycle support, written in Rust. A Wayland screen color temperature adjuster with automatic day/night cycle support, written in Rust. - domenkozar/redland

github.com/domenkozar/r...

Extending - devenv Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

Typically, cross-project sharing of best practices is done using scaffolding.

It doesn't have to be that way - you can keep those in sync across monorepo or polyrepo setup by extending our modules.

New guide: devenv.sh/extending/

devenv 1.9: Scaling Nix projects using modules and profiles - devenv Fast, Declarative, Reproducible, and Composable Developer Environments using Nix

devenv 1.9 is out and adds profiles

A way to organize and selectively activate parts of your development environment.

Create team modules with shared defaults, then use profiles to activate specific components.

devenv.sh/blog/2025/09...

Absolutely packed room for @domenkozar.bsky.social talk on the future of CI with @nixos-org.bsky.social, @devenv_nix and others.

Watch live at www.youtube.com/live/gdoYNYY...

Glad you like it :)

Looks like it doesn't work here :(

Not yet :)

We are happy to inform you that your proposal “What if GitHub Actions was local-first and built using Nix?” to NixCon 2025 has been accepted.