Summary & Key Takeaways ​

• The frozenStore setting allows pnpm to install packages from a read-only store, bypassing write operations.
• This feature is particularly useful for environments with immutable filesystems, such as Nix or OCI layers.
• It requires Node.js versions >=22.15.0, >=23.11.0, or >=24.0.0.
• Bin-linking now tolerates read-only stores by skipping redundant chmod operations.
• pnpm can delegate dependency resolution to pacquet, its Rust port, when configured.
• The feature fails fast if the store is incomplete or if incompatible options like --force are used.

Our Commentary ​

This frozenStore feature is a big deal for anyone working with immutable infrastructure or containerized builds. We've seen so many headaches trying to get package managers to play nice with read-only layers. The explicit support for Nix-like environments is a smart move. It feels like pnpm is really doubling down on robustness for complex build pipelines. I'm curious how widely this will be adopted, but it definitely solves a pain point.