chore(nix): add bun node_modules normalization scripts#1256
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xilec wants to merge 1 commit intocjpais:mainfrom
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chore(nix): add bun node_modules normalization scripts#1256xilec wants to merge 1 commit intocjpais:mainfrom
xilec wants to merge 1 commit intocjpais:mainfrom
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Add canonicalize-node-modules.ts and normalize-bun-binaries.ts to .nix/scripts/ for use by nixpkgs and other non-flake Nix builds. These scripts ensure deterministic symlink ordering inside node_modules/.bun/, which is required for reproducible fixed-output derivation hashes when using bun install --cpu="*" --os="*" to fetch all platform variants. Adapted from the opencode package (MIT license).
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Summary
Added two TypeScript scripts to
.nix/scripts/that canonicalize bun's internal symlinks insidenode_modules/.bun/:canonicalize-node-modules.ts— rebuildsnode_modules/.bun/node_modules/symlinks in deterministic sorted ordernormalize-bun-binaries.ts— rebuilds.bin/symlinks deterministically based onpackage.jsonbinfieldsAdapted from the opencode package (MIT license).
Why
These scripts are needed for the nixpkgs upstream packaging. Unlike the flake, nixpkgs can't use external tools like bun2nix (it's not merged yet), so the package uses a workaround:
bun install --cpu="*" --os="*"to download all platform variants and get a single hash that works on both Linux and macOS. Bun creates symlinks in non-deterministic order which breaks reproducibility — these scripts fix that.Having them in the Handy repo (rather than in the nixpkgs tree) is the preferred approach, same as opencode does it.
Test plan