Hi @NickWeir! Yes, I have looked into Odoo as well, and actually I met a French cooperative of producers who have organized their local food system through Odoo.
A network of local producers, shops, importers who have mutualized admin stuff and cooperate through a cooperative, and they use Odoo as an operating system to manage orders, invoices, etc.
I shared some thoughts on it on a previous discussion: Beyond accounting... other connections needed
That may be something to look a bit more into.
I tried in Norway to use it for incoiving BUT you can’t really modify anything unless you are a coder 