How to host yourself ?

You can host yourself at home (on a small computer), or on a remote server. Each solution has their pros and cons:

At home, for instance on an ARM board or an old computer

You can host yourself at home with an ARM board or a re-purposed regular computer, connected to your home router/box.

At home, behind a VPN

A VPN is an encrypted tunnel between two machines. In practice, it makes it "as if" you were directly, locally, connected to your server machine, but actually from somewhere else on the Internet. This allows you to still host yourself at home, while bypassing possible limitations of your ISP. See also the Internet Cube project and the FFDN.

On a remote server (VPS or dedicated server)

You can rent a virtual private server or a dedicated machine from associative or commercial "Cloud" providers.

Summary

At home
(e.g. ARM board, old computer)
At home
behind a VPN
On a remote server
(VPS or dedicated)
Hardware cost About 50€
(e.g. a Raspberry Pi)
None
Monthly cost Negligible
(electricity)
Around 5€
(VPN)
Starting at ~3€
(VPS)
Physical control
of the machine
Yes Yes No
Manual port
routing required
Yes No No
Possible ISP limitations Yes
(see [here](/isp))
Bypassed by VPN Typically no
CPU Typically ~1 GHz ~2 GHz
(Digital Ocean droplet)
RAM Typically 500 Mb or 1 Gb Related to server cost
Internet connectivity Depends on home connectivity Typically pretty good