Use multiple github repositories from the same server

multiple-git-config.md

1. Generate the ssh key:

ssh-keygen -t ed25519 -C "username@domain"

username@domain can be your email or the username @ server domain for easier readability, or anything.

Store it using a custom filename like ~/.ssh/github-REPO

2. Add the deployment key:

In your repository settings (https://github.com/USER/REPO/settings/keys), add a new key with the content from the public key (~/.ssh/github-REPO.pub)

3. Specify to use that key for that repo:

Edit ~/.ssh/config and add an entry like this:

Host github-REPO
  User git
  Hostname github.com
  IdentityFile /home/USRE/.ssh/github-REPO

Where the Host is what it's going to be used as the git origin URL, and the IdentityFile is the path for the key generated in the step 2

4. Set the origin for the repo using the custom domain

Go to the REPO folder and set it using

git remote set-url origin git@github-REPO:USER:REPO.git

It should work and each repo should be able to use its own ssh key to identify with github.