Open source CRM solutions

Hi all,

We're using a closed source solution at the moment for our business. It's good at its core, and we don't want to change, but, they recently changed tech stack for their interface, and it runs like a dog now. Everything is syrup slow, and they are not going to admit their issue, and redact their work, or change to another tech stack. We run high end machines, and it's just terrible.

So that got me looking about, and I'm trying to find something that is preferabbly open source, that we can self host also. But having said that, we're happy to support the devs by paying them to host, if it's not out of the range of normality pricing wise.

We do tap in with our own tools via API's, webhooks, and whatnot. So if a 'deal' is 'won' for example, the system will talk with our n8n automation flows, and do various things. So it will need to handle that.

Any suggestions GREATLY appreciated. Happy for anyone to pimp their own, or their companies also. As I say, we're happy to pay if it's what suites, but we'd like to support open source endevours if we can.

Thank you