In the Timescale Cloud portal, once you create a database, it's one-click "upgrade" to move between any of these configurations, and it happens with ~zero downt

In the Timescale Cloud portal, once you create a database, it's one-click "upgrade" to move between any of these configurations, and it happens with ~zero downtime. That's also true for multi-cloud migration, you just select that you want to migrate from a 100GB instance on AWS to a 200GB instance on GCP, and the migration happens behind the scenes. (Technically, it does so by spinning up a replica of the new configuration / location, and continuously migrates the database, including any online changes happening concurrently. Then, at the last minute, it "swaps" over control from the primary to replica, and then retires the old primary. This is all hidden behind DNS too.)