This looks very appealing. I’m using a google spreadsheet, which also maps to grids in small parts drawers. I will give your software a try.
One suggestion: for smd resistors and capacitors I’m using plastic mini vials:
https://ae-pic-a1.aliexpress-media.com/kf/S69e6442d03074cd0b...
They come in all sizes and if you drill holes in a thick piece of plastic you can arrange them and put them in a single drawer.