Middleware/devtools/components can be kinda profitable as a niche but you really have to hit a spot with where people who're weak at one thing is willing to pay

Middleware/devtools/components can be kinda profitable as a niche but you really have to hit a spot with where people who're weak at one thing is willing to pay for it. Also as you mention elsewhere there's a big disconnect between those who provide a non-profit thing (some Professors page) vs f.ex. a teaching company. I think the sanest way to approach this is to have 3 tiers with an AGPL version available where you offer support on a by-the-hour basis for some price with a lower rate for non-commercials (#1) and a higher for commercial ones (#2). And finally a non-gpl commercial license on a SUBSCRIPTION basis that includes X number of support tickets per year. (People really won't pay or sometims even upgrade to new versions anymore most of the time and the support/price ratio can get bad)