If the business model for this was: 1) fully open source 2) ~$2.99 per user per month 3) more for team features 4) paid plugins and themes 5) opt-in and inspectable telemetry

They’d probably get their million paying users in the first year.

For this crucial part of this target market’s (engineers) toolkit, it HAS to A) be open source and B) have the option for zero telemetry.

Inb4: “if it was open source why would people pay for it?!?” Because at the right price people are happy to pay and support something they love and get low-effort trustworthy updates built in.