This is the organising space for the finance group.
We talked about using online collaborative spreadsheets that are free/libre open source software (FLOSS), there are a few options.
Ethercalc is one simple choice - which can be accessed and edited by anyone who knows the link to the spreadsheet. This link can be complex/random and pretty unguessable or something simple and easily memorable.
There are lots of places hosting ethercalc, I’d suggest we use the service at https://calc.allmende.io/ - the Allmende/Ecobyte.net crew work with many European agroecological projects and share our values.
Alternatively there are a few options that are possible via nextcloud with collabora or onlyoffice, which provide the option to have access control. This option is possibly more complex than we need - but I can probably organise something if we decide we require it.