Would love if you focus on performance. A big reason I have to have custom software is that agents can act much faster than humans but SaaS software is usually not well-designed enough to handle high RPS so rate-limits are low. I can easily outperform commercial hosts myself. At the least, it would be sick to have separate tenancy so that I could absolutely slam my own instance without having to deal with some other chump complaining.
This is really interesting to me as someone who has always cared more about performance/responsiveness than most people (and the market).
I'm sure folks would be interested to hear about what types of SaaS you've replaced for perf reasons, especially if you'd be willing to go back to a paid SaaS offering that was very responsive with agent-scale rate limits.