Here’s a business idea for someone: find the best open source/self hosted business and start up tools (such as a chat app, a project management tool, a wiki, etc) and offer startups a managed hosting service of those selected apps. Toss up a cheap but decent vps per client, run some open source monitoring tools for yourself, price as a flat rate per app under management (vs scaling rate of a per user seat in most SaaS products).
Seems like a pretty damn easy lifestyle business that many early startups would find valuable because it saves them money and the headache of doing it themselves.
Check out Cloudron: https://www.cloudron.io/
I think flat rates either make you too expensive for a small/scrappy operation getting off the ground, or too cheap to be able to offer what a large client might want (without additional agreements). In practice, this feels like the space that individuals doing sysadmin/IT stuff for local businesses are covering to me, but with even more caveats.
I think odoo is doing something like this. They offer a lot of different apps, from e commerce to project planning, to marketing to HR. But it’s priced per user.