One of the first projects I did for HtmMbs, JP, the owner, wanted a way to better manage inventory counts.
Because the company uses Odoo for everything, I had to write a lot of logic in celery to keep everything synced. Adding a module to Odoo wasn't preferrable because (a) this was a very heavy duty application, around 10kloc, and (b) every new module in Odoo just makes the next migration that much harder. Better to use separate services.
Among the features I added: