There are a *lot* of software shops in the world that would far rather have one more technical dependency than they'd like to pay for one of their 20 engineers to become the company's SPOF expert on the joys of e.g. HTTP file uploads, CSV parsing bugs, PDF generation, etc.
On a serious note, it's interesting to observe that you can build a decent business charging $20 - $50 per month for something that any good developer can set up. This is one of those micro-saas sweet spots between "easy for me to build" and "tedious for others to build"
— Jon Yongfook (@yongfook) September 5, 2019
A consulting shop delivering a $X00k engagement for an internal system, a SaaS company doing something custom for a large client or internally facing or deeply non-core to their business, etc.