Show HN: TimeTracker – Self-hosted time tracking with invoicing (120 features)

I've been building TimeTracker over the past few years, and it's grown into a comprehensive self-hosted platform for time tracking, project management, and invoicing.*What it does:*- Time tracking with persistent server-side timers- Professional PDF invoice generation- Project & task management- Client CRM- Expense tracking- Advanced reporting & analytics- Role-based permissions- REST API*Why self-hosted:*I was tired of paying $15-20/month for time tracking tools and having my data locked in SaaS platforms. This gives complete control.*Tech:*- Python/Flask backend- PostgreSQL + Redis- Docker deployment- 120+ features documented*Deployment:*One docker-compose command. Works on any server, including Raspberry Pi.Would love feedback from the HN community! What features would be most valuable for you?