Happy hacking!
+## Developer and release modes
+
+In the default meson configuration (`-Dmode=developer`), certain checks are
+enabled that are suitable when hacking on systemd (such as internal
+documentation consistency checks). Those are not useful when compiling for code
+for distribution and can be disabled by setting `-Dmode=release`.
+
## Fuzzers
systemd includes fuzzers in `src/fuzz/` that use libFuzzer and are automatically