a custom command (wrapped by meson to capture output, to feed input) [197/229] Compiling C++ object waybar.p/src_modules_sway_mode.cpp.o [116/229] Compiling C++ object waybar.p/src_modules_sway_workspaces.cpp.o [125/229] Compiling C++ object waybar.p/src_modules_systemd_failed_units.cpp.o [111/229] Compiling