entbit. by Niklas Metje

Build your `nono` profiles with a Wizard 🧙🏼‍♂️

2026-08-27T00:00:00Z

I talked about sandboxing my agents with nono in the last blog post already (check it out here: Use nono AI agent sandboxes in Zed Agent Servers). After chatting with friends while setting up my own custom profile(s), I realised that it would take more than 5 minutes.

One mistake I made when starting out with my custom profile was forgetting to include local ports for my agent to access. This meant that the agent could not access my local development applications, even though I was trying to build the application with my agents.

Therefore we came up with the quick idea of setting up a proper nono custom profile via a wizard, clicking through the different features, using the pre-defined groups etc.

With the help of Claude and GLM-5.3 I would like to present the nono-profiler. This should help you get up and running with a good custom nono profile more easily.

Thanks for reading,
Niklas

Use `nono` AI agent sandboxes in Zed Agent Servers

2026-06-24T00:00:00Z

I recently set up nono sandboxes on my Mac to put my Claude Code sessions into a more restricted playground. Having Claude live unrestricted on my whole filesystem did not feel right, especially knowing that it could (potentially) request pretty much any website out there as well. No one wants to experience prompt injection or random deletions of your database or even your file system records.

I'm building a European serverless hosting platform

2026-06-13T00:00:00Z

(Or at least I will try to build it)

There is no hosting provider like AWS. Period. Their services are so advancement that European Hosters are faaaaar away from providing similar managed solutions. With the current advancements in politics, the need for such services increasing instead of decreasing.

Write more notes

2025-10-07T00:00:00Z

Remember the problem you encountered month ago? That once in a life time error that took a day / week to sort out? Yeah it occured a second time. Did you take notes on how you fixed it in the first place? No? Have fun finding the solution again.

Why Deno's new sandboxes could let your app scale infinitely

2025-09-21T00:00:00Z

An exciting new development has recently emerged in the Deno universe. The new sandbox project, which is currently in the alpha phase, allows any JavaScript code to be executed in an ephemeral environment. This means that user- or AI-generated code can be executed without the risk of malicious code being brought to the host system.

It's a combination of technologies that makes my nerd heart beat faster: Deno and Firecracker VMs combined.

AI as a Sparring Partner: Manage Blog Post Marketing

2025-02-21T00:00:00Z

Over the last few days I have been building a tool that suggests possible titles, meta descriptions, a LinkedIn post and a newsletter issue based on my blog post files in Markdown. Personally, I want to focus on writing good blog posts that reflect my thoughts or work. As the content is more important to me than the 'marketing' around it, be it the LinkedIn post or the 'perfect' description of the article, I have considered using the tool to have this suggested by an AI model. My blog post is always used as the foundation, which is always attached to the prompt.

Effortless Internationalization in JavaScript with the Intl API

2025-02-07T00:00:00Z

When creating apps and websites, we often need to display data in different languages. Be it currencies, speeds, times or dates. Sorting words in different languages or dynamically setting the singular and plural forms of a word are also such use cases. For this there is the Intl API in JavaScript, which in my opinion still gets far too little attention.

In the past, I have written custom functions or used libraries to do the above in different languages.

So let's take a look at some of the functions of the Intl API and try to understand why it can make our lives easier.

The End of Date Libraries? Exploring JavaScript's Built-in Temporal API

2025-01-05T00:00:00Z

Working with date objects in Javascript can be quite a pain. That is why I usually use a library like date-fns for comparing, adding hours to my dates or working with dates and times in general.

The TC39, which is the group of people who develop the definition of JavaScript, is working on the Temporal API. You can check out the proposal and documentation here.

With this, we no longer need date libraries, because the API itself is a breeze to work with.

Setting up PGlite in Deno

2024-09-06T00:00:00Z

I recently tried PGlite because I saw it trending on Hacker News. The idea is cool, having a built-in Postgres database that can even run in the client's browser brings a lot of possibilities. Seeing WASM (Web Assembly) get more use cases is also exciting to see.

Using Environment Variables in Datadog Agent Configuration

2024-09-05T00:00:00Z

Hey there, 👋

I needed to set up a Datadog agent to check remote Postgres instances as a regular container. All the documentation I found was about injecting secrets like passwords or hostnames via Kubernetes secrets. This seemed to be the only way to do it besides using Docker Swarm secrets. Since I had to set up a container definition for AWS ECS Fargate, neither of these options were available. So I wanted to see if I could use "regular" environment variables from which the agent could pull the secrets on startup.