Insiders is $5 a month, for the one app? For $5 more I can have 260+ apps with Setapp. It doesn’t feel like great value for money.
Have you thought about one off payments for maybe a year of updates?
I am thinking about implementing one time payments but really it's a way of trying to sustain all my OSS projects for the long term.
git clone https://github.com/dlvhdr/gh-dash && cd gh-dash && go build . && ./gh-dash