oracle offers an always free VPS with 1 full core (2 threads) and 1GB ram / 50GB HD that costs 0$ per month for life, the caveat is it's limited to 50mbps up/down

this is perfect for single user instances and i think @pasture is going to implement it into fediverse.express

so if you guys are looking for something that costs literally nothing, this is an option

docs.oracle.com/en-us/iaas/Content/FreeTier/resourceref.htm#Details_of_the_Always_Free_Compute_instance