Insights on scheduling, productivity, and building open software

We moved Cal.com's production codebase from a public repository to a private one. The public repository is now calcom/cal.diy, known as Cal.diy, the open-source, self-hostable, community-driven version of Cal.com.

Here's what changed.

After five years as open source champions, Cal.com is going closed source. This wasn’t an easy decision, but in the age of AI-driven security threats, protecting customer data has to come first. Cal.diy will continue as an open option for hobbyists.

As a sales team, when your priority lies in hitting quota, filling your calendar, and keeping the pipeline look healthy, “salesforce software” is probably the last thing on your mind. So your real intent when searching for ‘Salesloft pricing’ is to help your team drive predictable revenue, which can be a game-changer today for a sales team.

Security testing hasn’t kept pace with how software is built or how it’s attacked. While development cycles have accelerated and AI-powered attackers can probe systems continuously, most security practices still rely on periodic assessments and slow remediation. The result is a widening gap between when vulnerabilities are introduced and when they’re discovered or fixed. In our recent analysis of autonomous AI-driven pentests across production systems, that gap becomes impossible to ignore: modern applications aren’t just vulnerable, they’re continuously vulnerable.

Guest post by Huzaifa Ahmad, Founder, Hex Security

Pricing plays an important role in defining the tools in your tech stack. In 2026, businesses cannot afford to just run one CRM and call it a day. An online booking system plays an important role in improving the operational efficiency of your business.

Tired of paying for a CRM just to get a basic scheduler? This guide breaks down what Pipedrive Scheduler can actually do in 2026, where it falls short, and whether a dedicated tool like Cal.com is the smarter move for your team.

Discover the best APIs and MCP servers for real business workflows. From Cal.com's scheduling API that automates bookings to GitHub/Notion/Slack MCPs that eliminate context switching, we specifically vetted for OpenClaw and Claude Code to accelerate sales, dev, ops, and marketing in 2026.

At the crux of it, scheduling is what makes or breaks a system. Scheduling issues could lead to chaotic situations in businesses, hotels, hospitals, and restaurants, where:

• Clients are left waiting

• Receptionists have to face constant interruptions and make readjustments

• Patients show up and have no idea when they’ll be seen

• Tables get double-booked at restaurants

All of these situations are taxing on both ends of the dynamic, be it the receptionist at a hospital or the patients waiting to get a check-up. These circumstances are mainly caused by scheduling issues like double-bookings, missed shifts, and manual adjustments made after the damage is done.