For pyrotechny.eu a different user account and SSH key is used. When using git ssh config can override the domain name and use it with different settings. See below:

`.ssh/config`:

```
Host gh_pyrotechny
	Hostname github.com
	User git
	IdentityFile ~/.ssh/id_ecda_pyrotechny_eu
```

`.git/config`:

```
jerry@Jerrys-iMac pyrotechny.eu % git remote -v
local	/Users/jerry/src/github.com/xor-gate/pyrotechny.eu (fetch)
local	/Users/jerry/src/github.com/xor-gate/pyrotechny.eu (push)
origin	gh_pyrotechny:pyrotechny-eu/pyrotechny.eu.git (fetch)
origin	gh_pyrotechny:pyrotechny-eu/pyrotechny.eu.git (push)
```