#blocker

Show HN: Site/app blocker and usage tracker specifically for Linux

I needed an proper application to block sites and apps on Linux based on a schedule. None of the commercial offerings worked properly for me so I wrote my own. This was also my first experiment with AI assisted coding. It blocks sites and apps on a schedule, and takes away your sudo during the hours you choose so you can’t just turn it off. I added several features like tracking usage, giving recommendations etc. and It's been actually very useful for me hence I decided to open source and productize it. Have a few users so far too. It's been a nice learning experience for me. Not just for the

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Show HN: Site/app blocker and usage tracker specifically for Linux

This was my first experiment with AI assisted coding. Backstory: I had a bunch of scripts to block sites on my work machines by redirecting them 127.0.0.1 etc. and they sort of worked. I needed something more serious and tried to get some commercial applications but there was nothing that really worked the way I wanted to (especially not on Linux). In Oct 2025 or so, I picked up aider and started building this out. Halfway through, I switched to Claude Code and used this as a vehicle to learn how to use assistants. It blocks sites and apps on a schedule, and takes away your sudo during the hou

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Sneaky Header Blocker Trick

There is a lil’ UI detail on this blog. Most people don’t even notice it, but the ones who do often reach out, asking how on earth it works. It feels like it defies the rules of CSS! In this blog post, I’ll break down the surprisingly-straightforward implementation so you can start using this trick yourself.

Josh W. Comeau · EN