Right now I'm going very low tech for recipe management...I send a DM to my SO on slack. That's most of what we use the DM for, an archive of things we've made. We mostly need a bigger screen in the kitchen that stays on while making a recipe. A Microsoft Surface we have laying around will be used for that.

I'd like to do a database of products purchase, purchase date, price paid, scan a barcode and mark it as consumed, and calculate typical consumption rate of the products.

I will keep things pretty simple, either a sqlite database that stays local or a LAMP setup so I've got access to an inventory list at the store along with "price check" functionality.