arch-meson is a small wrapper script for meson:

$ cat /usr/bin/arch-meson
#!/bin/bash -ex
# Highly opinionated wrapper for Arch Linux packaging

exec meson setup \
  --prefix        /usr \
  --libexecdir    lib \
  --sbindir       bin \
  --buildtype     plain \
  --auto-features enabled \
  --wrap-mode     nodownload \
  -D              b_pie=true \
  -D              python.bytecompile=1 \
  "$@"