I’ve been using Redmine for nearly a decade. Download the bitnami VM with it preinstalled and away I go. I use it for all my time tracking to generate invoices,

I’ve been using Redmine for nearly a decade. Download the bitnami VM with it preinstalled and away I go. I use it for all my time tracking to generate invoices, and project estimates. Then when working on the project I can put time against an existing estimates task or if I missed something in the estimate or something was added I’ll create a new task for the extra. Works great and I love that the UI hasn’t been redesigned and just works.