The thumbnail at the left is of Giocoso running perfectly on a freshly-built Debian 13 system. Debian 13 was released on August 9th, 2025 so is brand new and the concern is always that the distro developers will update key libraries in ways that break my own software.
Happily, on this occasion, and as you can see, they didn't do that and Giocoso 3.31 installs and behaves entirely correctly without me having to tweak anything.
The same, happily, is true for the current releases of Niente and Semplice:
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Debian 12 users of my software can therefore confidently upgrade to the new Debian release without fear of these programs, at least, breaking!