First we need to create the ssh keys for each account

ssh-keygen -t rsa -C "your@email.com"

cd .ssh
code .
// copy ssh ky from id_rsa.pub and paste it in a new ssh key in github

if error chech https://stackoverflow.com/questions/18683092/how-to-run-ssh-add-on-windows

ssh-add /ssh/id_rsa

if its not working:

ssh-agent -s

`

repeat this steps with the other account

Then create a config file, that should look loke this:

Host github.com
HostName github.com
User git
IdentityFile ~/.ssh/id_rsa_Account1

Host github2.com
HostName github.com
User git
IdentityFile ~/.ssh/id_rsa_Account2

Match Host github.com exec "git config --get user.name | grep 'name_Account_1' > /dev/null"
IdentityFile ~/.ssh/id_rsa_Account1

Match Host github.com exec "git config --get user.name | grep 'name_Account_2' > /dev/null"
IdentityFile ~/.ssh/id_rsa_Account2

Then create 2 folders where you will create and work with your git projects

The .gitconfig file should look like this

`shell
[user]
email = Account1@gmail.com
name = Account1
[core]
editor = nvim

[includeif "gitdir:/media/pau/564548676397F900/main/"]
path = ./path/to/Account1/folder/.gitconfig
[includeif "gitdir:/media/pau/564548676397F900/UPC/"]
path = /path/to/Account2/folder/.gitconfig

[credential "https://github.com"]
helper =
helper = !/usr/bin/gh auth git-credential
[credential "https://gist.github.com"]
helper =
helper = !/usr/bin/gh auth git-credential

`

Then, in each Account folder, create a .gitconfig, that should look like this:

`shell
[user]
email = Account1@mail.com
name = Account1
signingkey = DEADBEEF

[core]
sshCommand = "ssh -i ~/.ssh/id_rsa_Account1"
`

make the same for the other folder, and you should have configured well you double git account using ssh

I've made all this using git cmd

some usefull references

https://www.youtube.com/watch?v=2MGGJtTH0bQ
https://gist.github.com/rahularity/86da20fe3858e6b311de068201d279e3