# Matt Litherland

Head of Product at Cal.com. Author of [Bklit UI](https://bklit.com). Based in Veliko Tarnovo, Bulgaria, mostly found in the Pirin mountains.

Matt Litherland is Head of Product at Cal.com and the author of Bklit UI, an open-source chart library for React. Design engineer based in Veliko Tarnovo, Bulgaria.

## Cal.com

Head of Product at [Cal.com](https://cal.com). In November 2026 Cal.com launched five products; Matt was responsible for all of them:

- **Cal AI**: An agentic assistant that understands the context of your calendar.
- **Cal Events**: Events, hosted and booked on Cal.
- **Cal Discover**: Services people list on their Cal become discoverable.
- **Cal Desktop**: Cal.com as a native app on your desk.
- **Cal Mobile**: Cal.com in your pocket.

## Bklit UI

[Bklit UI](https://bklit.com) is an open-source chart and data-viz library for React, built on d3, Motion and Tailwind. It is a member of the Vercel OSS Program. The charts on this site are Bklit components drawn from real data: Bansko weather, GitHub activity and npm downloads.

Other open source: [Onborda](https://github.com/uixmat/onborda) (onboarding tours for Next.js), [shadcn-country-dropdown](https://github.com/uixmat/shadcn-country-dropdown), [Firestarta](https://github.com/uixmat/firestarta).

## Off the clock

Backcountry snowboarding when there's snow, enduro mountain biking when there isn't.

Winter setup:

- Jacket: [Jones Deeper GORE-TEX](https://eu.jonessnowboards.com/products/men-s-deeper-goretex-insulated-jacket?variant=44791621615751)
- Bibs: [Jones Higher GORE-TEX 3L](https://eu.jonessnowboards.com/products/men-s-higher-goretex-3l-bibs?variant=44791553327239)
- Goggles: [Out Of Electra 3](https://out-of.com/product/electra-3/)
- All-mountain board: [CAPiTA Super D.O.A.](https://eu.capitasnowboarding.com/en-bg/products/capita-super-d-o-a-mens-snowboard-2027?variant=55656797045121)
- All-mountain bindings: [Burton Step On X Re:Flex](https://eu.burton.com/en-bg/products/mens-burton-step-on-x-re-flex-snowboard-bindings-222841)
- Backcountry board: [CAPiTA Slush Slashers 2.0](https://skipro.com/products/sb-slush-slashers-2-0-56w)
- Backcountry bindings: [Union Ultra](https://www.blue-tomato.com/en-BG/product/UNION-Ultra+Men+s+2027+Snowboard+Bindings-774203/)

Bike: Santa Cruz Vala XX AXS RSV.

- Frame: Carbon CC
- Fork: FOX 36 Float Factory, 160 mm
- Shock: FOX Float X Factory, 150 mm
- Motor: Bosch Performance CX
- Drivetrain: SRAM XX Eagle AXS T-Type
- Brakes: SRAM Maven Silver, 200 mm
- Wheels: Reserve 30|HD Carbon
- Weight: 20.64 kg

## Writing

Nothing published yet. Follow the RSS feed for the first essay.

## Elsewhere

- GitHub: https://github.com/uixmat
- X: https://x.com/uixmat
- Instagram: https://www.instagram.com/army.burning/
- Strava: https://www.strava.com/athletes/uixmat
- RSS: https://uixmat.dev/writing/rss.xml