We don't hear much about them, but most software is actually custom software. Only a tiny fraction of software enjoys wide distribution. Operating systems and Web browsers for instance are a minuscule niche, in terms of development effort. They just have a disproportionate impact.
Writing decent quality Free Software is easy: write custom software. Just give them the source code, and assign copyright to them. Or, give them a GPL (or BSD) licensed copy. Depending on the specifics, the software may not be free for you. But it will be free for its sole user, which is what matters.
Writing decent quality Free Software is easy: write custom software. Just give them the source code, and assign copyright to them. Or, give them a GPL (or BSD) licensed copy. Depending on the specifics, the software may not be free for you. But it will be free for its sole user, which is what matters.