The jekyll-compose extension for Jekyll can automatically open created files. But for this in addition to settings you need to set the default editor environment variable for your terminal. I use clink for cmd.

  1. Create the init.cmd file in the user’s OC folder 
    C:\Users\YourName\init.cmd

    It can be in another place (I have it in my rep folder).

  2. Syntax:
set VAR_NAME=value

We set VS Code as the default editor.

set JEKYLL_EDITOR=code

Note that this is the name you need.

  1. Now you need to register it in order to apply it automatically at startup cmd.exe

In the terminal, run:

reg add "HKCU\Software\Microsoft\Command Processor" /v AutoRun /t REG_EXPAND_SZ /d "%"USERPROFILE"%\init.cmd" /f

Make sure that the path to init.cmd is specified correctly

Ready!

Restart cmd and the variable should work.

To cancel registration, run:

reg delete "HKCU\Software\Microsoft\Command Processor" /v AutoRun

And so you can also set abbreviated commands for cmd/powershell.