Over the past couple of months we sped up provisioning, branching, and waking up Xata Postgres databases.
The article (and video demo) shows what that feels like: a database sitting scaled to zero with the bill flat, waking the instant you run a query, then branching into an isolated copy you can hand an agent without touching the source.
Once branches are this fast, a Postgres per PR, per CI job, per agent run, per psql session all become practical.
Each one is a full isolated database with copy-on-write data, awake only for the minutes you use it.