Setup SSH

Open Command Prompt

ssh-keygen

Enter for next steps

Generating public/private ed25519 key pair.
Enter file in which to save the key (C:\Users\<username>/.ssh/id_ed25519):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:

Output would look somewhat like this

Your identification has been saved in C:\Users\<username>/.ssh/id_ed25519
Your public key has been saved in C:\Users\<username>/.ssh/id_ed25519.pub
The key fingerprint is:
SHA256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx computer_name

Use the following command to add the key to ssh server

type C:\Users\<username>/.ssh/id_ed25519.pub | ssh <username>@<server> "cat >> .ssh/authorized_keys"

Check if it works (even if the previous command prints out permission denied)

ssh <username>@<server>

If doesn't work, mannually copy the key in id_ed25519.pub to .ssh/authorized_keys

ssh <username>@<server>
[log in]
cd .ssh
cat authorized_keys
[paste the public key here]

Create alias

Go to folder C:\Users\<username>/.ssh
Check if there is config file
If not, create a new one
Add the following content:

Host <name>
    HostName <server>
    User <username>
    IdentityFile C:\Users\<username>\.ssh\id_ed25519

Save file, make sure the type is File
Log in to the server using ssh <name>

7b. Example:

Host abc
    HostName abc.universe.us
    User a_nice_user
    IdentityFile C:\Users\a_nice_user\.ssh\id_ed25519