Scheduling on Sooraj Sathyanarayanan

Proton Calendar Appointment Scheduling

2026-04-28T00:00:00-07:00

Proton Calendar Appointment Scheduling is the strongest hosted pick if you want public booking pages without moving scheduling into a Calendly-style data model. Key features include:

Public booking pages that show only the availability you choose to share
Invitees can see open slots without seeing full calendar event details
Booking details are protected with Proton’s zero-access encryption model
Booked meetings sync into Proton Calendar to help prevent double-booking
Proton Meet integration for private video calls on supported plans

Tradeoffs:

Hosted by Proton, not self-hosted
Appointment scheduling is a paid-plan feature
Less broad than scheduling platforms built around large integration marketplaces

Cal.diy

2026-04-28T00:00:00-07:00

Cal.diy is the strongest open-source and self-hosted scheduling candidate if you liked Cal.com but want a community edition without commercial dependencies. Key features include:

Community fork of Cal.com with enterprise and commercial code removed
MIT-licensed codebase
Self-hosted booking infrastructure you control
No Cal.com account or license key required for the community edition
Good fit for personal scheduling, demos, hobbyist deployments, and careful small self-hosted setups

Tradeoffs:

The project recommends personal, non-production use unless you are comfortable owning the infrastructure
You are responsible for updates, patching, backups, logs, secrets, database security, and monitoring
Not a good fit for a serious team unless someone is accountable for operations