Rob Janssen

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A Viewer Remade my Old Project! Is it any Good?

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Always use [closed, open) intervals

Intervals or ranges pop-up everywhere in the programming world. The classic example is picking a start and end date, like you would when booking an AirBnB or a flight. But that's just one example: from slicing a JS Array, to Java's List#sublist and even SQL's LIMIT operator, ranges are everywhere.


Version 2 is a complete rewrite with improved capability over the original. See the examples below. rpi-clone is a shell script that is for cloning a running Raspberry Pi booted source disk (SD card or USB disk) to a destination disk which will be bootable.

Issuing and using SSH Certificates

SSH certificates allow system administrators to SSH into machines without having to manage authorized keys in the servers. Then, usually, a system administrator or an automated system creates certificates for the users that need to access the servers.

How Hackers Hide Huge thanks to Snyk for supporting the channel and sponsoring this video! Please show Snyk some love and check out all the awesome stuff they are up to: Help the channel grow with a Like, Comment, & Subscribe! ?? Support ? ? ht

Watching YouTube on a Commodore Pet

This video shows a way to watch YouTube videos on a 40-year old Commodore Pet, at about 30 fps. Link to the details on how to approximate a bitmap to a character set: Here's a link to the circuit simulator:

Latency Numbers Programmer Should Know

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Norman Doors: Don’t Know Whether to Push or Pull? Blame Design.

Some doors require printed instructions to operate, while others are so poorly designed that they lead people to do the exact opposite of what they need to in order to open them. Their shapes or details may suggest that pushing should work, when in fact pulling is required (or the other way around).

System.Threading.Channels library

The System.Threading.Channels namespace provides a set of synchronization data structures for passing data between producers and consumers asynchronously. The library targets .NET Standard and works on all .NET implementations. This library is available in the System.Threading.

Signing Git Commits with Your SSH Key

You may already be signing your Git commits with a GPG key, but as of today you can instead choose to sign with your SSH key! Signing in SSH is a relatively new feature that lets you use your private SSH key to sign arbitrary text and others to verify that signature with your public key.

This Read-It-Later-list is just that, bookmarks of stuff I intend to read or have read. I do not necessarily agree with opinions or statements in the bookmarked articles.

This list is compiled from my Pocket list.