I've been using Gumroad for just over a year and it's actually a really great product, but the concerns about it sort of being on life support are pretty real
Their iOS dashboard app stopped working last July and hasn't worked since, tons of documentation is stale, certain pages mention features that don't even exist anymore, etc.
A few months ago their webhook queues were down for 3 days before anyone there even noticed and tried to sort it out
It's one of my favorite tools I pay for, but the fears of it being under-maintained have been enough to push me to start building my own tool to replace it.
Kitetail is still in development, but looks like it could be an interesting solution.
This is actually what I'm working on Since throwing up that landing page I've expanded the scope to be a more complete Gumroad competitor with first class support for downloadable products in addition to just webhooks, but haven't put together an updated landing page yet.
I'm trying to build one tool that will let me run my entire info product business, which at the moment includes a book and a course. I make a full-time living from those products right now, so I'm really invested in designing and building a tool that will make it as easy as possible to continue being successful with that business.
Even if it doesn't take off as a SaaS business, worst case scenario is I'll have what I think is the best platform out there for continuing to grow and launch my training products.
I'm still a month or two out from inviting on any early alpha users, but if anyone is interested in learning more about it I'd love to chat.
I've been trying the Nathan-Barry-build-it-in-public thing which has been fun, can follow along with that here if you're interested: