AI Developer & Athlete

Passionate about training for Hyrox
and building useful fitness related projects.

Next Race: Hyrox Maastricht 19th September, 2025

About

Hyrox Berlin, 2025

👋 Mark here -- dad-in-training, code-curious, always trying to move forward.

Dabbled in several endurance races and wandered to some far-flung places from Yemen to Japan to Nicaragua. Always curious, always trying to move forward.

Worked as a chartered surveyor, teacher and now taking a swing at startup life. Recently, I learned to code with AI, and now I ship Hyrox products I need - maybe you do too.

Inspired by quiet builders and laptop freedom: Levels, Friks, and Lou 💻.

When I'm not coding, I'm training for Hyrox or knee-deep in a LEGO mission with the kids.

👇 Take a peek at what I've built - or say hello here: mark@stellarapp.ai

Projects

These are my current projects. I hope you like them.

Live in the App Store

Longevity Tracker

stellarapp.ai

An AI-powered longevity tracker

Activity tracking Sleep tracking Nutrition tracking Powerful AI insights
In development

Daily Stack

Stack wins daily: auto post to Insta when you've hit the gym, coded, and slept well.

Earned Sharing Social Proof Habit Reinforcement
In development

Magic Shopping List AI

hybridgearai.com

Add Hyrox products to your shopping list and then let the AI bot search the web, notifying you when it finds a cheaper price!

Location-based optimisation One click set up
In development

Sleep Scanner AI

sleepscanai.com

Upload a short video of your sleeping environment and optimise your sleep with AI recommendations

Light Pollution Feng Shui Noise Pollution
In development

Hyrox game

hygame.com

A multiplay game where you take on the Hyrox stations against your friends.

Multiplayer Hyrox stations Fun to play when not training!

Training

Current metrics 📊

VO2 Max

63 ml/kg/min (4/5)

Resting Heart Rate

42 BPM (4/5)

Trap bar deadlift

110kg x5 @77kg (3/5)

Training Schedule 🏋️‍♂️

Monday

Strength, core and wall ball finisher

Tuesday

Doubles tennis or rest day

Wednesday

Track

Thursday

Strength and wall ball finisher

Friday

Run with some speed work

Saturday

Tennis practice

Sunday

Hyrox or alternating long run

Daily Supplements 💊

🌅 Breakfast

  • 1. Beetroot Extract - 3000mg 🍃

🥤 Post-Workout

  • 2. Whey Protein (Grass-Fed) - 30g 🥛
  • 3. Creatine Monohydrate - 5g 💪
  • 4. Himalayan Pink Salt - 1/4 tsp 🧂
  • 5. Coconut Water - 1/2 cup 🥥
  • 6. Honey - 1 tbsp 🍯
  • 7. Lemon Juice - Half a lemon 🍋
  • 8. Kale / Spinach leaves - Handful 🥬
  • 9. Pineapple Chunks - 1/2 cup 🍍
  • 10. Water - 1/2 cup (or more) 💧

😴 Sleep

  • 11. Montmorency Cherry - 1000mg 🍒
  • 12. Saffron - 28mg 🌺
  • 13. L-Theanine - 200mg 🍵
  • 14. Magnesium Glycinate - 300mg 💊

Timeline