You can always pop it on GitHub with no license. You retain copyright, nobody can do anything with it. Would enable users to report bugs there in the Issues area, or you could make a basic GitHub Pages site, or there's a wiki or discussion forum.
If you did add a license, users could submit PRs of bug fixes or new features. If you don't have a lot of users it probably would get very little traffic and so not become burdensome. (And you can always ignore it... Not ideal, but life comes first)
If you care about privacy and want to have some fun with the license idea, you can add an Ethical Source license, so anyone who uses your code has to comply with a code of ethics. (https://ethicalsource.dev/licenses/) Maybe a license that says you cannot use this if you actively work against women's reproductive health/freedoms?
If you did add a license, users could submit PRs of bug fixes or new features. If you don't have a lot of users it probably would get very little traffic and so not become burdensome. (And you can always ignore it... Not ideal, but life comes first)
If you care about privacy and want to have some fun with the license idea, you can add an Ethical Source license, so anyone who uses your code has to comply with a code of ethics. (https://ethicalsource.dev/licenses/) Maybe a license that says you cannot use this if you actively work against women's reproductive health/freedoms?