BabySave is a browser-based save editor for Baby Steps save files.
This project is entirely derivative of Bisqwit's babysteps_saveedit:
https://github.com/bisqwit/babysteps_saveedit
On Linux / Steam Proton, save files are located in:
$HOME/.steam/steamapps/compatdata/1281040/pfx/drive_c/users/steamuser/AppData/LocalLow/DefaultCompany/Babysteps/#/save/
On Windows, save files are located in:
C:\Users\%USERNAME%\AppData\LocalLow\DefaultCompany\BabySteps\#\save
In both paths, # is some numbered save profile folder.
Open index.html in a browser, then drag a .sav file onto the page or choose one with the file picker. Download the modified save after editing.