I've managed to find 3 different teams to work with on SuperGo. I think it would have been a great exercise for me to engage more with these teams on a regular basis to understand more clearly what they needed, however I lacked the interest.
Regarding user activity, all teams were active on a weekly basis, however not all users were daily active. The number of go/links created was particularly lower than what I expected (I create tons). In the end, I could have validated interest in this product by doing a survey, however because I was actually building that thing for myself, I did not bother.
The business partnering opportunity did not happen as planned, mostly because the prospects were not as excited as I was.
When it came to pricing, I realized that to actually make $3k MRR I'd need something like 1.5k users at $2 per month – I do not think I could sell this kind of service for more.
Stopped working on it around june, end of july made a quick quirky landing page. Overall, it was a fun project, I learned more stuff about nextjs/react, and now time to turn the page.
The website is available for free, and I put a page were people can buy me a coffee if they like, so it supports the infra costs.