Keith Williams

Head of Engineering @calcom and @coss_com

[Keith Williams @keithwillcode]

In an industry where so many leadership teams work off of “number go up”, we cannot forget that instilling respect, trust, autonomy, inspiration, motivation and flexibility goes a hell of a long way to producing great results.

[Keith Williams @keithwillcode]

As more layoffs happen in our industry, I’m thrilled to post that we are hiring. Check out the 4 engineering roles at https://t.co/hDcLulmbqa

[Keith Williams @keithwillcode]

@geordanwinners Indeed not simple. We’re using lots of AI on our side as well plus adding gates along the path of booking->sending notifications

[Keith Williams @keithwillcode]

Today we shipped a more advanced defense mechanism for phishing attacks. We are taking this seriously and are staying heads down on it with constant improvements. Let me know if you see anything suspicious.

[Keith Williams @keithwillcode]

How do we keep up with PR reviews in the age of AI without sacrificing quality? I took our internal best practices and made it into a blog. Hope it's helpful for others.
https://t.co/fCLpfTHh7j

[Keith Williams @keithwillcode]

Much love 🙏🏼

[Sahitya @sahitya_twt]

Everyone's mad @calcom went closed-source. But here's what nobody's talking about:

The community it built:

- I got hired as an intern directly because of my open-source contributions to @calcom. No interview, just code and proof of work
- It was and will continue to be a gateway for countless developers making their first ever OSS contribution
- developers used it to learn real system design, real booking flows, real calendar infrastructure. All out in the open, and still is
- It remains one of the largest and most active OSS codebases out there, real code, reviews, bugs

The product it still gives for free:

- Full production-grade scheduling engine, free to self-host
- Complete app store framework with 50+ integrations
- API v2, fully open in https://t.co/KXl7sR0RCp
- Security patches backported to the public repo like it was production
- License switched from AGPL to MIT when handing it off
- Maintained by engineers who actually shipped real code inside it

@peer_rich @keithwillcode @pumfleet care deeply about OSS and have given more to this community than most. So before the outrage, think about what was actually built and given away.

That's worth remembering before you all start making assumptions.

[Keith Williams @keithwillcode]

Here's a slightly more technical blog post outlining the changes in the https://t.co/CZyshjwnHL repository. Here to help answer any questions you may have regarding contributions moving forward. https://t.co/gxb7tJ4oGz

[Cal.com @calcom]

https://t.co/BBfD1INJKF now available under MIT — for hobbyists, builders and self-hosters

Use at your own risk. Free forever.

Use https://t.co/oBpdVL4YGC for any hosted production environment.

[Keith Williams @keithwillcode]

Just want to say to all the engineers who are more “heads down” and focused on delivering high quality software instead of trying to build whatever will get you attention, keep doing your thing. Our industry needs more engineers like that. 🙏🏼

[Keith Williams @keithwillcode]

AI being able to regurgitate code that has been written similarly hundreds or thousands of times means you can use your newly found time to be creative and to truly innovate. That should be exciting, not scary.

[Keith Williams @keithwillcode]

@shashanktelkha1 Awesome. Please apply using the link I posted

[Keith Williams @keithwillcode]

I'm hiring an IC4 Scale Engineer. If you are passionate about scaling DBs with millions of records, global deployments, sophisticated caching techniques and tons of perf investigations, would love to see your application.
https://t.co/FaCaEUl1Fx

[Keith Williams @keithwillcode]

@dhaiiryashiil @calcom @peer_rich Damn I get a VIP badge. Nice 😀

[Keith Williams @keithwillcode]

@teodos @calcom Hey @teodos want to DM me your username and I’ll foreword to our support team

[Keith Williams @keithwillcode]

On Tuesday, we regrettably had degraded service on https://t.co/C21mZZfk71 with very long load times and even downtime for some users. Here's a write-up of what happened, how we fixed it and what we did to improve. PRs included.
https://t.co/RmcOLAAkkC

[Keith Williams @keithwillcode]

Getting the green line as close to the purple line as we can. Huge influx of community PRs over the last 9 months that are we so grateful for and we want to keep up. Changes coming...

[Peer Richelsen @peer_rich]

our head of engineering @keithwillcode just published a new metric for community PRs on https://t.co/moetYjKRMQ

its becoming a big priority to get as many awesome PRs from the community merged

[Keith Williams @keithwillcode]

@hbjORbj @Lovable @GoDaddy @vercel Awesome 🙏🏼

[Keith Williams @keithwillcode]

@hugodemenez @peer_rich Thanks for reporting. We'll get it fixed cc @dhaiiryashiil

[Keith Williams @keithwillcode]

Built an automation where adding labels to PRs has @DevinAI resolve conflicts and even push stale PRs across the finish line for you.

Very curious how this accelerates our core team and especially the community. Let me know of any feedback you have. 🙏🏼

[Keith Williams @keithwillcode]

Technology that results in people critically thinking less is not ideal, so we need to be careful with AI.

To combat this, I’ve decided to leverage AI to reduce the wasted time on syntax, quirks, etc. of coding and instead unleash a flood of ideas.