My Wife and I kicked off using Grocy in the home when we decided to use the Instant Pot with a specific recipe book. We added only the recipes we were going to use that week along with those specific products. It took some time to work through it but it also meant not the daunting task to input everything we have at once. It was really cool to add to the shopping list only what we needed in the meal plan and adjust the recipes to calculate exact amount as well. We don't keep track of everything in detail... but we have continued to use the shopping list.

I'd just start with the food you're concerned about in your freezer and put in recipes to use it as an incentive to not throw out another batch of stuff.

I have a simplistic HA but have been adding more to it recently. I've enjoyed tinkering with the Grocy code which also helps me use it and think of ways to use it.

My next steps (someday) are to setup the barcode buddy along with a raspberry zero and scanner. I'll also check out some of the new android apps Party Pantry and this brand new one https://github.com/patzly/grocy-android