Charge for durable value, not artificial scarcity.
Theme files are easy to copy and the community is still young. The paid downloads sell focused guidance and reusable settings—not exclusive access to fan-made portraits. The free tools remain the acquisition loop; custom work sells thoughtful composition and support.
A signed cross-platform helper may become a paid convenience product only after notarization, code signing, automatic recovery and version testing are complete. There is no lifetime license for unfinished software and no checkout pretending otherwise.