The nixpkgs-unstable channel's programs.sqlite was used to identify packages producing exactly one binary, and these automatically added to their package definitions wherever possible.
https://github.com/NixOS/nixpkgs/pull/217084 plans to migrate Rust packages to use `importCargoLock`, but the migration script cannot handle `cargoPatches`: https://github.com/NixOS/nixpkgs/pull/217084#discussion_r1111253151
0x is a colorful, configurable xxd written in Rust.