Paulo Orvalho informed me about two new DOS software: PTBASIC, a very cool clone of GW-BASIC, and PTCALC, a clone of the good old VisiCalc spreadsheet. I have briefly tested both these programs and they seem to work flawlessly. I have added them to the SvarDOS repository. The original SVP files can be downloaded at the PTSource github:
https://github.com/ptsource/X86-DOS-OS-Builder/tree/main/SVAR
Mateusz
Yesss, thats IT. Go SvarDOS.