
๐จ๐ญ Swiss Software Engineer based in Zurich Creator of ๐ @sublimd and ๐ป @ghostfolio_ #BuildInPublic #OpenSource
Switzerland
Joined August 2010
- Tweets2.7K
- Following304
- Followers511
- Likes6.6K
Thomas Kaul retweeted
๐ Ghostfolio in Numbers 10/2026
#BuildInPublic
Thomas Kaul retweeted
Ghostfolio pulls on ๐ณ @Docker Hub over time:
๐ถ๐ธ/๐ธ๐ถ๐ธ๐บ โ โ ๐ป๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐ท/๐ธ๐ถ๐ธ๐ป โ ๐ท ๐ถ๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐ฝ/๐ธ๐ถ๐ธ๐ป โ ๐ท ๐ป๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐ท/๐ธ๐ถ๐ธ๐ผ โ ๐ธ ๐ถ๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐ป/๐ธ๐ถ๐ธ๐ผ โ ๐ธ ๐ป๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐พ/๐ธ๐ถ๐ธ๐ผ โ ๐น ๐ถ๐ถ๐ถ ๐ถ๐ถ๐ถ
xitter.cf/ghostfolio_/status/209โฆ
Thomas Kaul retweeted
Ghostfolio has reached 300 contributors on GitHub! ๐
Huge thanks to everyone who has been part of building this open source wealth management software.
Thomas Kaul retweeted
๐ Ghostfolio in Numbers 09/2026
#BuildInPublic
Thomas Kaul retweeted
Ghostfolio has passed 3 million downloads on @Docker Hub ๐
Thomas Kaul retweeted
recently I find myself doing at least 3- 5 rounds of review of complex changes authored (and reviewed) by SOL 5.6 high /xhigh
and what is (mildly) frustrating is that it tends to find actionable fixes and improvements, specially when starting with fresh ctx in a new thread
i hope such things get absorbed into harnesses to produce better quality out of the box
i guess I could encode this as a skill to spawn independent reviews after each change but still,
there seems to be potential for additional value that could have been delivered out of the box ...
Thomas Kaul retweeted
raising a seed round to buy a castle. itโs the only thing with a real moat these days
This is a weird time to be a software developer.
On one hand, we have these amazing magic boxes that spit out code when we ask nicely.
On the other hand, nobody knows what works, for how long it works, or the best ways to produce good, quality software anymore.
For the last couple of decades, every professional software developer operated under a set of principles and patterns that worked.
If you knew those, you were good.
But now everything has changed, and every single developer I know is flying by the seat of their pants.
Thomas Kaul retweeted
๐ Ghostfolio in Numbers 08/2026
#BuildInPublic
Am 24. Juli ist ยซDoctorโs Docu Dayยป ๐
รrzte verbringen 44 % ihrer Arbeitszeit mit administrativen Aufgaben. Rein rechnerisch sind sie ab heute bis Ende Jahr nur noch mit Bรผrokratie beschรคftigt.
Mit sublimd bleibt der Kopf frei fรผr die klinische Arbeit.
sublimd.com/de/blog/2026/07/โฆ
Thomas Kaul retweeted
๐ Ghostfolio in Numbers 07/2026
#BuildInPublic
Thomas Kaul retweeted
๐ Swim Coach 7 is here!
The newest generation of the app comes with a brand new design, an improved workout algorithm, even more exercises and a new achievement system - swimcoach.app
Thomas Kaul retweeted
Monarch Money charges $99.99 a year.
Quicken Simplifi charges $71.88.
Empower is free but funnels you to financial advisors who only talk to you if you are already rich.
A developer in Switzerland does the same job for $0. Forever.
His name is Thomas Kaul. The software is Ghostfolio. 8,654 stars. AGPL-3.0. Last commit yesterday.
He started writing it in April 2021. Three years before Intuit deleted Mint.
Here is what happened to everyone who trusted Intuit.
October 31, 2023. Intuit announces Mint is shutting down. 3.6 million users. Fifteen years of spending history. Gone.
January 1, 2024. Mint goes dark. Force-migration to Credit Karma begins. Credit Karma strips out budgeting. Refuses to let you export your transactions. Turns your financial tracker into a credit card sales page dressed in Mint's clothes.
Fifteen years of every user's financial life. Deleted on schedule.
Anyone running Ghostfolio on a Raspberry Pi that night lost nothing.
Their data sat on their own hardware. In their own house. On their own network. Untouched. While 3.6 million Mint users were marched into a replacement they did not ask for.
That is the difference between using a free product and owning a free product.
Here is what Ghostfolio does:
- Track stocks, ETFs, crypto, and cash in one place.
- Portfolio performance across any time period.
- Asset allocation by sector, country, and currency.
- Concentration risk analysis. Know when you are overexposed.
- FIRE calculator. It tells you when you can retire.
- Multi-account management.
- Full transaction import and export.
- Public API for your own scripts.
- Dark mode. Works on your phone like a native app.
- One Docker Compose file. Runs on a Raspberry Pi.
Buy a Raspberry Pi once. Track your portfolio for the rest of your life.
Thomas is a Swiss developer with a day job. He pushed code yesterday. He will push code next week. The license is AGPL-3.0. Even if Thomas walks away tomorrow, the entire codebase legally belongs to you.
Monarch: $99.99/year.
Quicken Simplifi: $71.88/year.
Empower: free. You are the product.
Ghostfolio: $0. Your server. Your data. Forever.
Intuit took Mint away from 3.6 million people.
The community gave it back. Better. On your own server.
Your portfolio. Your data. No shutdown.
Thomas Kaul retweeted
๐ Ghostfolio in Numbers 06/2026
#BuildInPublic
Thomas Kaul retweeted
Pull stats on ๐ณ @Docker Hub:
๐ถ๐น/๐ธ๐ถ๐ธ๐น โ โ ๐ท๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐ธ/๐ธ๐ถ๐ธ๐บ โ โ ๐ป๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐ท/๐ธ๐ถ๐ธ๐ป โ ๐ท ๐ถ๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐ฝ/๐ธ๐ถ๐ธ๐ป โ ๐ท ๐ป๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐ท/๐ธ๐ถ๐ธ๐ผ โ ๐ธ ๐ถ๐ถ๐ถ ๐ถ๐ถ๐ถ
๐ถ๐ป/๐ธ๐ถ๐ธ๐ผ โ ๐ธ ๐ป๐ถ๐ถ ๐ถ๐ถ๐ถ
xitter.cf/ghostfolio_/status/205โฆ
Ghostfolioโs Docker image has been pulled 2โ500โ000 times from @Docker Hub! ๐ฅ
#BuildInPublic
Thomas Kaul retweeted
Ghostfolioโs Docker image has been pulled 2โ500โ000 times from @Docker Hub! ๐ฅ
#BuildInPublic
๐ Neue Case Study: Digitale Anรคsthesie-Sprechstunde in der @Lindenhofgruppe
Die digitale Anamnese von sublimd vereinfacht die Vorbereitung vor dem Spitaleintritt und reduziert den administrativen Aufwand.
โก๏ธ Jetzt lesen: sublimd.com/de/case-studies/โฆ





















