Then take a AWS free Virtual Machine and host it :).
Just check the traffic regularly (because only 15GB outgoing traffic is free, incoming does not cost anything. You can set a alarm for 1 USD).
Or get the smallest instance from scaleway, which is so far the smallest one with a dedicated hardware core (not thread) on reasonably modern chips at 2 EUR ~ 2.5$/month, unmetered 100Mbit, 1GB ram and some 25GB fast ssd. If you know any cheaper ones, let me know. They even have 3$/month bare-metal ones with slightly higher specs, but using a Marvell ARM chip and only supporting exotic NBD storage.
Heck, if you'd be fine with an EU server, contact me, I'd sponsor it, including a short subdomain.
Heck, if you'd be fine with an EU server, contact me, I'd sponsor it, including a short subdomain.