Christian Schulze

About

Thu, 21 May 2026 00:00:00 +0000

Christian Schulze is an AI engineer, full-stack engineer, and fractional CTO with 10+ years as CTO and co-founder in European startups, including an exit.

CRMe

Thu, 21 May 2026 00:00:00 +0000

Open-source AI-native CRM with agentic capabilities, a custom AI layer, PostgreSQL, TypeScript, Next.js, and Go.

CV

Thu, 21 May 2026 00:00:00 +0000

Christian Schulze’s CV: AI engineer, full-stack engineer, and fractional CTO with 10+ years as CTO and co-founder in European startups.

Hiro

Wed, 20 May 2026 00:00:00 +0000

Internet crawler and search engine with pgvector semantic search, PostgreSQL full-text search, Go crawling, Python embedding services, gRPC, HTMX, and Alpine.js.

Agentbridge

Tue, 19 May 2026 00:00:00 +0000

Open-source tooling for multi-harness agent communication over Tailscale, built with Go and Preact.

bits 0x02: switching to orion as a browser

Thu, 24 Jul 2025 08:02:01 +0000

The most interesting thing I wanna share is my browser switch. I’ve always been using Arc. As that is done, I made the switch to Zen. Pretty buggy but ok. The biggest problem I had was the power draw. As I’m preparing a more nomadic lifestyle, I really need to care for my battery. The power draw is really just way too high. By accident, I stumbled upon Orion. I’ve had it in the back of my head but for whatever reason never even looked at it. I’ve been using kagi as a search engine on and off for a while now.

My Tribe of Builders Interview

Fri, 08 Sep 2023 07:37:24 +0000

I did my first “interview” with Mat from Tribe of Builders and it was an interesting experience. He provided me with a list of questions and I could choose the ones I wanted to answer most. I got so into it that I answered quite a lot. After editing I could review the post, but it was good as it was. It was an interesting experience and I really like the outcome. Be sure to give Mat some love, he is gathering advice from builders all over the world and it is a great resource for anyone who wants to start building something or needs some motivation.

Authz via SpiceDb

Sat, 22 Jul 2023 07:15:09 +0000

At digital office we are building a new authorization system. We’re using Spring Security ACL at the moment, but we’re seeing a number of issues with it. Namely:

the documentation is outdated at best
they’re contemplating deprecating it with Spring Security 7
no migration documentation from Spring Security 5 to 6, which blocks us from upgrading to Spring Boot 3 as well
it’s finnicky to use, and we’re seeing a number of issues with it
we regularly have trouble with caching and performance

On top of that, we’re seeing a number of issues with the way we’re using it. I always disliked how bad the testability is. How do you have a meaningful check for an annotation like this?

Status Quo of Newsletterify

Wed, 05 Jul 2023 13:53:32 +0000

So it’s been a while since my last update and a lot has happened. I launched 2markdown) over the course of a weekend. digital office has taken most of my time while we’ve crunched the last two months. I didn’t have the necessary time to work on newsletterify I’m afraid. I still believe the idea is great and I’m still convinced that it’s worth a shot.

Let’s address some technical decisions that have become stumbling blocks for me. In terms of the tech stack for newsletterify, I initially opted for Golang, Gin, and GraphQL via gqlgen for the backend, along with TypeScript and SvelteKit for the frontend. However, a few unforeseen issues have surfaced: