The problem with "development environments", like other interactive workloads, is that there is a human at the other end that desires a good interactive experie

The problem with "development environments", like other interactive workloads, is that there is a human at the other end that desires a good interactive experience with every keypress. It's a radically different problem space than what k8s was designed for. From a resource provider productive, the only way to squeeze a margin out of that space would be to reverse engineer 100% of human developer behavior so that you can ~perfectly predict "slack" in the system that could be reallocated to other users. Otherwise it's just a worse DX, like TFA gives examples of. Not a business I'm envious too be in... Just give everyone a dedicated VM or desktop, and make sure there's a batch system for big workloads.