The idea was to use it to make an app that would serve as custom database for everything and interact with the spreadsheet so people could play and calculate with their values after they were created by the custom app, something like an MS Access integrated with Excel?
My first attempt that worked (I believe there was an attempt before but I have probably deleted it from everywhere) was this react-microspreadsheet thing (at the time called react-spreadsheet before I donated the npm name to someone who asked):
This was a very good spreadsheet component that did many things current "react spreadsheet" components out there don't do. It had formulas; support for that handle thing that you pulled with the mouse and it autofilled cells with a pattern; it had keyboard navigation with Ctrl, Shift, Ctrl+Shift; it had that thing through which you copy-pasted formulas and they would change their parameters depending on where you pasted them (implemented in a very poor manner because I was using and thinking about Excel in baby mode at the time).
Then I tried to make it into "a small sheet you can share" kind of app through assemblymade.com, and eventually as I tried to add more things bugs began to appear.
Then there was cycle6-spreadsheet:
If I remember well this was very similar to the other one, although made almost 2 years after. Despite having the same initial goal of the other (the multi-app custom database thing) it only yielded:
- Sidesheet, a Chrome extension that opened a spreadsheet on the side of the screen that you could use to make calculations and so on. It worked, but had too many bugs that probably caused me to give up entirely.
I'm not sure which of the two spreadsheets above powers http://sheets.alhur.es.