I currently do freelance dev for a startup where I essentially fix non-urgent bugs and things. That led me to thinking - could this be offered as a productized service charged at $x/mo? I'd only offer it for the tech stack that I'm good at.
I'm not sure how you'd structure pricing for something like this, especially since bugs can be notorious to estimate time to fix.
I'd love to get feedback though, is this something that startups might consider? The pitch is that it'll cost $2-3x of your FTE dev time vs my service and distract them from building core product.