build: add nix flake#11

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HaukeSchnau wants to merge 3 commits intodmmulroy:mainfrom

HaukeSchnau:nix-flake

Commits on Jan 16, 2026

build: add nix flake
HaukeSchnau
committed
chore: enhance flake with fileset, version suffix, overlay, checks, formatter, and devshell tooling
HaukeSchnau
committed
chore: add nix CI flake check, scheduled flake.lock updater, gitignore result, and README nix docs
HaukeSchnau
committed