This has been in the works for quite awhile here. We put a long bet on "slow create fast start/stop" --- which is a really interesting and useful shape for execution environments --- but it didn't make sense to sandboxers, so "fast create" has been the White Whale at Fly.io for over a year.
>>breaki+sc7
Nope, re: SSH. Tailscale should already work on a Sprite. Everything we do at Fly.io is connected by WireGuard, so it's just a question of whether we want to expose that to users.
>>tptace+rF7
Tailscale definitely had issues for me, unless I used user-mode networking and even then it was iffy. I should add that it also auto-signed me up for a trial of Fly.io itself, which is useless to me now but might've come in handy later.