Copy this file to: C:\Users\serafeim\AppData\Local\Packages\Microsoft.WindowsTerminal_8wekyb3d8bbwe\LocalState
To auto-start a layout add the following shortcut to startup (windows+r shell:startup):
C:\Users\serafeim\AppData\Local\Microsoft\WindowsApps\wt.exe -d C:\progr\pgsql ; split-pane -d c:\progr\js\glowing-bear ; split-pane -d C:\progr\