Marcus Wilstrup
Visit the hab

Marcus Wilstrup, smiling, at a table outside on a warm evening
Marcus WilstrupEarth, for now

Engineer, builder & investor

Hi, I'm Marcus.

I love space. If a seat to Mars came up, I'd take it.

At twelve I had a few bots farming gold in World of Warcraft while I slept, running scripts I added myself. I've been building software since: game servers, school systems used across Denmark, and two companies of my own. Today I lead engineering for other teams, invest in a few companies, and build my own products. I'm all in on AI, and have implemented automated processes across all my work.

Visit my Martian habitat Read my CV
Inside the hab at dusk: a lit floor lamp, an armchair, and a long window onto the plains of Arcadia with solar panels outside.

Arcadia Planitia, Mars · 39.8° N 202.1° E

Visit my Martian habitat

A small hab on the plains of Arcadia. Walk in, switch on the lamp, read the paper. The sky in the window is the real one, right now.

Local time12:31:44SeasonMY 39 · springLight, Earth → hab13 min 36 s
Step inside
Earth and Mars around the Sun on 5 Oct 2026, 1.63 au apart EarthMars

Where we are today · 1.635 au apart

Live · as of 5 Oct, 09:00 UTC

What I've been up to

Everything live on /now

On GitHub, the last year

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8,701 contributions in the last year

From the log

  1. Lamp on

    Rebuilding this site from scratch. The old one was six hand-written pages of consultant copy that could have belonged to anyone. The new one is a hab on Mars after dark, one lit…

Read the log · RSS

Next launches

  1. SpaceXportfolioFalcon 9 Block 5 | SDA Tranche 1 Transport Layer A6 Oct, 08:17 UTCTo Be ConfirmedVandenberg SFB, CA, USA
  2. SpaceXportfolioFalcon 9 Block 5 | Starlink Group 15-2510 Oct, 23:00 UTCGo for LaunchVandenberg SFB, CA, USA
  3. SpaceXportfolioFalcon 9 Block 5 | Dragon CRS-2 SpX-3513 Oct, 10:33 UTCGo for LaunchCape Canaveral SFS, FL, USA

Launch Library 2 · as of 5 Oct, 08:59 UTC

Around the site

More

Crew fileMy CVTen years of Rails and a few companies of my own. There is a PDF.Read the CV Investments · 10InvestmentsI own a piece of a few companies, mostly in space and AI.See the companies Projects · 20ProjectsValarom, Tabularium, Notarium, Testarium and more, including the ones that are closed.Everything I've built DailyThe Arcadia TimesA daily paper from the hab. AI writes it from linked sources.Read today's edition

Work with me

A few days a week, over months.

Remote, on site when it matters.

  • Fractional CTO & tech leadershipI lead the engineering team a few days a week and simplify what is there.
  • Rails for mature applicationsI work through the codebase and ship, without a big rewrite. Through Nordium Labs.
  • Technical due diligenceA written read of the team, the architecture and the technical risk.

Say hello

marcuswilstrup@gmail.com

I read everything and usually answer within a day.

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Star map · the telescope

The solar system, today

Real positions of the planets for right now, the journey through my chapters, and the belt. Pick a destination on the right, or drag the map.

MercuryVenusEarthMarsJupiterSaturnUranusNeptune