“netcat” can be used to proxy-enable “git”

• https://en.wikipedia.org/wiki/Netcat
• https://en.wikipedia.org/wiki/SOCKS
• https://en.wikipedia.org/wiki/Git_(software)

This only works, if your proxy also supports SOCKS.

netcat’s specific options:

• -x : specify proxy address and port
• -X : proxy protocol: …, “5” (SOCKS), …

This approach should also work for a few more applications.