Remote Caching

ELI5 - The Vibe Check

Remote caching means if a teammate already built the exact same code with the exact same inputs an hour ago, your machine doesn't rebuild it, it just downloads their result from a shared cache. It's the build-system version of not re-cooking a meal someone in your kitchen already made from the identical recipe five minutes ago, you just grab their plate.

Real Talk

Remote caching stores build and test outputs in a shared, content-addressed cache keyed by the inputs that produced them, so any machine, local or CI, can reuse a previous result instead of recomputing it. Build systems like Bazel, Turborepo, and Nx use it to make monorepo builds and CI runs dramatically faster by skipping work that's already been done elsewhere.

Show Me The Code

{
  "remoteCache": { "enabled": true },
  "tasks": {
    "build": {
      "outputs": ["dist/**"],
      "cache": true
    }
  }
}

When You'll Hear This

"Remote caching took our CI build from 12 minutes to 40 seconds on cache hits." / "Make sure the cache key includes the env vars, or remote caching will serve stale results."