I use InvoiceNinja for what seems to be a very similar use case. After a doable learning curve I really like it. You can install it on bare metal or use docker.
I use InvoiceNinja for what seems to be a very similar use case. After a doable learning curve I really like it. You can install it on bare metal or use docker.
Hetzner has Nextcloud in their your-storageshare.de offer. It’s a hosted instance which you are admin of. About 5 Euros a month for 1 TB of storage for the smallest tier. This was the way I chose after years of self hosting. Your-storageshare is awesome and I don’t get tired of recommending it. Maybe I should ask for a commission at some point…
I found all of the IKEA buttons quite good and they are really affordable. They are not FOSS like you requested but they use ZigBee and they work really well with HA. The light bulbs are good, too.
I still use a ConBee II for the ZigBee connection but I think there are better options available now. I bought it years ago.
Sorry for answering so late. Yes, just mark the invoice as paid or something. Your have to have the invoice in the system though as far as I know.