Which only works on linux. No other OS allows static binaries, you always need to link to libc for syscalls.

Also works on FreeBSD. FreeBSD maintains ABI compatibility within each major version (so 14.0 is compatible with 14.1, 14.2, and 14.3 but not 15.0): You also can install compatibility packages that make binaries compiled for older major versions run on newer major versions.

  $ pkg install git rust
  $ git clone https://github.com/BurntSushi/ripgrep.git
  $ cd ripgrep
  $ RUSTFLAGS='-C target-feature=+crt-static' cargo build --release
  
  $ ldd target/release/rg
  ldd: target/release/rg: not a dynamic ELF executable
  $ file target/release/rg
  target/release/rg: ELF 64-bit LSB executable, x86-64, version 1 (FreeBSD), statically linked, for FreeBSD 14.3, FreeBSD-style, with debug_info, not stripped

try cosmopolitan!