config/mimeapps.list ships at /etc/skel/.config/mimeapps.list (via
omarchy-settings's existing config/** -> /etc/skel/.config copy).
New users get the full Omarchy MIME defaults on first login without
running install scripts.
install/config/mimetypes.sh shrinks to two runtime ops that a static
file can't replace:
- omarchy-refresh-applications: copies .desktop entries and icons into
the user home and refreshes the desktop database
- xdg-settings set default-web-browser chromium.desktop: sets the
system-default browser; omarchy-install-browser overrides this if
the user later picks a different browser.