Create your own Knowledge Base with Copilot Studio

I like creating complex solutions for simple problems just as much as every other engineer. That’s why I have dozens of side-projects going on where I’m trying out stuff. During my day job, I try to provide as much value to the customer/business with the most simple, most performant and cheapest solution I can think of. That’s where Copilot Studio comes into play. You’ve probably read a ton of posts and articles about bring-your-own-data, RAG, finetuning LLMs, etc. Read more →

Comments are now in GitHub via giscus

I’ve been having issues with Disqus for a while now. Comments weren’t always placed under the correct post and I’ve done some extensive troubleshooting on it, invoking the Disqus API to resolve, added custom (meta) header fields on the pages. So far, I haven’t been able to fix it on all posts so have been looking for another system to facilitate adding comments to the posts. This blog is a static website, created via Hugo, so no databases, only Markdown. Read more →

Create an AI Assistant with your own data

The current large language models, like GPT-4, GPT-4 Turbo and GPT-4o are great when you need some output generated based on data you feed in the prompt. Even the small language models, like Phi-3, are doing a great job at this. However, these models often don’t know a lot about the data within your company. Because of this, they can’t do a good job at answering questions that required data from your organization. Read more →

Smaller repositories on disk with Git sparse checkout

My disk was full the other day, so I needed to clean up. First the obvious stuff, like the Downloads-folder, the Nuget-cache, the bin- & obj-folders and the Temp-directory. Second, I used WinDirStat to figure out where the other biggest culprits of data-usage are to be found. One of the directories was the main project I’m working on, with a staggering 24GB in disk size! Obviously, we’ve created a lot of code in the past years, but not THAT much. Read more →

Why and when to use static classes and methods

A friend asked me a question, a while ago, stating: Hey Jan, One stupid question around which I have thought a lot and often get stuck while deciding. When to make a function static/non-static specifically the helpers or utility ones. I read 2 arguments All the functions that don’t need to use a state of the object, (don’t update any variable value of the object ) should be static. All the functions that should/can be test independently and have some logic. Read more →