1. Open your wsl terminal
2. install open-ssh server

   sudo apt update 
   sudo apt install openssh-server

3. Configure the ssh server: sudo vim /etc/ssh/sshd_config
   1. PermitRootLogin no - disallows root login for security
   2. PasswordAuthentication yes - if you want to allow password login
   3. PubkeyAuthentication yes - if you want to use key-based authentication (recommended)
   4. Port 2222 - Windows ssh server already uses port 22, so we need to pick a different one.
   5. ListenAddress 0.0.0.0
4. Activate and start the ssh server:

   sudo systemctl start ssh
   sudo systemctl enable ssh

5. Set a fixed Hostname for the WSL Instance in (C:\Windows\System32\drivers\etc) for the Ip that is shown

   wsl.exe hostname -I 

As of now, it seems like the WSL2 Instance is having a static IP, a lot of shenanigans wasnt needed that is described elsewhere, for setting up the ssh-agent

5. Restart wsl by shutting it down (wsl --shutdown) and then starting it again (wsl)

1. Generate new ssh keys on your remote machine by following this guide from GitHub

2. Add your keys to your wsl's user ~/.ssh/authorized_keys

   1. Copy the contents of the public key you created in step 1.
   2. Run: public_key_placeholder >> ~/.ssh/authorized_keys - make sure to replace public_key_placeholder with the actual contents of the public key

3. [Optional] Add ssh config

   1. Edit your ssh config file: vim ~/.ssh/config
   2. Add the following config (make sure to replace placeholder values):

   Host wsl_hostname_placeholder
     Hostname wsl_hostname_placeholder
     Port 2222
     User wsl_user_placheolder
     UseKeychain yes
     AddKeysToAgent yes
     IdentityFile ~/.ssh/id_rsa
   

4. Now you can ssh to your wsl2 instance: ssh wsl_hostname_placeholder

   1. If you didn't add a ssh config, then you need specify those options: ssh wsl_user_placheolder@wsl_hostname_placeholder -p 2222

the WSL Instance is inactive at boot. As soon as a WSL Instance is started, the ssh-agent will be available. You can automate the startup or set Windows Terminal to start on boot with the WSL Shell.