Manage the shared build-storage settings - #5
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Two settings that make package managers and rustc stop duplicating work across checkouts were applied to this machine by hand and were not managed here, so a new machine would not get them. - ~/.bunfig.toml: bun installs by hardlinking from its own cache instead of copying every package into each node_modules. pnpm already does this by design; npm has no equivalent. - ~/.cargo/config.toml: rustc compiles through sccache, so a dependency crate is built once per machine rather than once per checkout. Deliberately not a shared [build] target-dir — cargo takes an exclusive lock on the directory it builds into, so one shared dir would serialise every build that runs in parallel. - sccache added to the brew list, which is the half that installs it. The wrapper is recorded as bare `sccache` rather than the absolute /opt/homebrew/bin path the machine had, so the file is not arm-mac-specific. Verified after applying: a scratch crate builds clean and sccache logs the compile requests, so the bare name resolves.
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Two machine settings that stop package managers and rustc duplicating work across checkouts were applied by hand and were not managed here, so a new machine would not get them. This puts them under chezmoi and adds the package that one of them depends on.
home/dot_bunfig.toml— bun installs by hardlinking from its own cache instead of copying every package into eachnode_modules. pnpm already does this by design; npm has no equivalent.home/dot_cargo/config.toml— rustc compiles through sccache, so a dependency crate is built once per machine rather than once per checkout.sccacheadded to40-packages.ymlunder build tools — the half that installs it.Deliberately not a shared
[build] target-dir.Cargo takes an exclusive lock on the directory it builds into, so pointing several checkouts at one dir would serialise every build that runs in parallel. sccache is keyed by compilation inputs and is safe for concurrent readers and writers; target dirs stay per-project.The wrapper is recorded as bare
sccacherather than the/opt/homebrew/bin/sccacheabsolute path the machine had, so the file is not arm-mac-specific.Verification
chezmoi diffpreviewed both files before applying, and the apply was scoped to those two paths — no unrelated pending drift was touched. Afterwards a scratch crate built clean (cargo build, exit 0) with sccache logging 4 compile requests, confirming the bare name resolves. Zero hits/misses on that crate is expected: abincrate with default incremental is non-cacheable, and the win is in dependency rlibs.