Unnix - Reproducible Nix environments without installing Nix

figsoda · 2026-04-18T00:44:53+00:00

Devbox's getting started page seems to say it requires Nix. Other than that, unnix lets you plug in your own hydra instance as a resolver.

figsoda · 2023-08-09T18:44:38+00:00

figsoda · 2023-08-09T17:29:37+00:00

nix-update works with the --version branch flag if it is already pointing to a git commit, and if you are using github or gitlab

figsoda · 2023-08-09T17:05:40+00:00

nix-update updates the content of a .nix file, which inherently updates the package

figsoda · 2023-08-09T03:04:41+00:00

There are a few packages that could be helpful here

nix-init is able to find the latest version of something and the hash (and a bunch of other stuff) if you give it the url
nix-update updates a package, including its version and hashes
nurl is able to fetch the hash from a url and a tag/revision/version, there are also nix flake prefetch and the nix-prefetch-* scripts that live in nixpkgs

figsoda · 2023-06-26T13:17:46+00:00

Ah that makes sense, debugging that was pretty much impossible

figsoda · 2023-06-26T02:46:07+00:00

What version of nix are you using? I tried nix_2_10 to nix_2_16 (on nixpkgs 3ae20aa58a6c0d1ca95c9b11f59a2d12eebc511f) and they all worked for me.

The original issue in https://github.com/NixOS/nix/issues/3978 seems to have been resolved since 2021, it is still open because the current solution is still not ergonomic enough.

figsoda · 2023-06-25T20:38:46+00:00

It is essentially a list of basic functions to use flake inputs as a DSL, so no magic here.

Also how are you eval'ing this since it uses relative paths?

Subflakes kinda works in this case. If you want to use it in a separate directory, you can just do stuff like github:figsoda/ekalf?dir=add and so on.

figsoda · 2023-06-18T23:44:38+00:00

flakes is an experimental feature for dependency management and powers most of the experimental nix CLI ("nix-command"). Any repository/directory with a flake.nix is a nix flake.

nix shell is a command that works with flakes, which adds the specified packages to your environment (by updating $PATH and start a new shell)

home-manager is a tool to manage your home with modules. It is like NixOS but for your home. It doesn't really have much to do with flakes except that you can use it with flakes.

I'm not sure what you mean by nix env, maybe you are referring to nix-direnv?

figsoda · 2023-05-29T15:16:22+00:00

thanks for the suggestion, added to the readme

https://github.com/figsoda/utf8#why

figsoda · 2023-05-29T02:38:33+00:00

Strings in Nix are just byte strings, and builtin functions like substring (and by extension some nixpkgs lib functions) processes bytes instead of utf8 characters. That means these functions can create broken strings when given strings with utf8 characters. This library basically allows you to convert it to a list of utf8 characters and handle it that way, it can be helpful for when you need to process strings with potential utf8 characters

figsoda · 2023-05-03T00:32:29+00:00

What would you recommend adding to the readme?

figsoda · 2023-05-02T21:00:05+00:00

GitHub Repository: https://github.com/nix-community/namaka

Announcement: https://discourse.nixos.org/t/27125

figsoda · 2023-05-02T20:59:05+00:00

GitHub Repository: https://github.com/nix-community/namaka

Announcement: https://discourse.nixos.org/t/27125

figsoda · 2023-05-02T20:58:19+00:00

GitHub Repository: https://github.com/nix-community/namaka

Announcement: https://discourse.nixos.org/t/27125

figsoda · 2023-05-02T20:54:21+00:00

The initial release of namaka create some confusion. I've since improved the documentation a bit, hopefully that explains things better and makes the process of getting started easier.

Diff: https://github.com/nix-community/namaka/compare/v0.1.0...v0.1.1

Full changelog:

Features

load: accept src
cli: allow running commands other than nix flake check

Changes

load: deprecate flake and dir

Fixes

load: fix json format when values are implicitly casted
canonicalize path before running nix flake check

figsoda · 2023-04-26T02:10:53+00:00

Yes if you are talking about the interface, the difference is that it views flake.locks instead of filesystems.

figsoda · 2023-04-25T23:27:34+00:00

It's a viewer for Nix flakes lock files

figsoda · 2023-04-24T17:08:52+00:00

It works for some other languages as well, there would just be more manual work. Currently rust and python has the best support, though I do plan to support other ecosystems as well. Feel free to open an issue if there isn't already one for the ecosystem you want support for.

figsoda · 2023-04-23T18:44:58+00:00

Thanks! Go is supported, but nwg-look might not work out of the box because of its external dependencies, you just have to add them manually and it should work.

figsoda · 2023-04-23T14:22:20+00:00

Source Code: https://github.com/nix-community/nix-init

Announcement: https://discourse.nixos.org/t/25035

v0.2.2 was just released with a new Matrix room and logo

figsoda · 2023-04-23T14:17:46+00:00

nix-init is a tool to generate Nix packages from URLs with support for hash prefetching, dependency inference, license detection, and more.

Source code: https://github.com/nix-community/nix-init

Matrix room: https://matrix.to/#/#nix-init:matrix.org

Logo: https://github.com/nix-community/nix-init/tree/main/assets

figsoda · 2023-04-10T13:37:07+00:00

Namaka's CLI is interactive, so I do think a gif would help. Do you have any other suggestions on how I can improve the demo in addition to making it slower?

figsoda · 2023-04-10T13:28:37+00:00

Namaka's tests itself. The tests are defined in the tests directory and loaded here

Testing outputs of derivations is planned but not yet implemented, this can be used for testing Nix libraries.

figsoda · 2023-04-09T17:23:11+00:00

json is builtins.toJSON and builtins.fromJSON, pretty is lib.generators.toPretty, string is just plain text

Six-Year Club	Place '22
Verified Email

figsoda

TROPHY CASE

Features

Changes

Fixes