Nix flake packaging

[pseudocc]

So NixOS users can load the firmware.

Test

On my ThinkPad X13 Yoga Gen5, good.

[pseudoc@zipzap:~]$ sudo dmesg | grep "intel_vpu"
[   10.404035] intel_vpu 0000:00:0b.0: enabling device (0000 -> 0002)
[   10.411564] intel_vpu 0000:00:0b.0: [drm] Firmware: intel/vpu/vpu_37xx_v0.0.bin, version: 20241025*MTL_CLIENT_SILICON-release*1830*ci_tag_ud202444_vpu_rc_20241025_1830*ae072b315bc
[   10.599330] [drm] Initialized intel_vpu 1.0.0 for 0000:00:0b.0 on minor 0

My flake

pseudocc/nix-config@27ee1af

[jwludzik]

@pseudocc , can you provide a more detailed reason why this PR should be merged? How does this change apply to Nix main repository? I am not familiar with NixOS, any guidance would be appreciated

[pseudocc]

@jwludzik Sorry for the late reply, was enjoying the Chinese New Year holidays and missed your comment.

This "flake.nix" for Nix packages is more like a PPA for debs, it is more flexible (users might still want to use state version 23.05, 23.11, etc. Then the nix-flake can help them getting this package without update the main channel that leads to a completely nixos rebuild), these commits do not affect the Nix main repository, but I may create PR for this firmware package in the NixOS/nixpkgs later on.

[osbm]

Thanks for packaging this repo. its awesome

[osbm]

LGTM !!!!