This is what I learned using a multi-level/stackable vermicomposter by "Urbalive" (worm bin) for a year inside an apartment. I’m explaining the set-up, working with multiple bins and how to remove the worm castings.
US Links:
Urbalive Vermicomposter - https://amzn.to/3TRXID7
Live Worms - https://amzn.to/3Nz4jhV
UK/Europe Links:
Urbalive Vermicomposter - https://amzn.to/3Ggijuu
Live Worms - https://amzn.to/3sWOTfC
Chopping board with drawer - https://amzn.to/39UwOYL
0:00 Intro
2:57 Setting up the bin
7:23 Day-to-day instructions
11:50 Adding another level
13:42 Worm tea
16:24 Harvesting worm castings
25:14 Outro
All music in video is by Quincas Moreira