Notepad++ show line numbers
It’s a little hidden imo, so future-me or for your service – the setting to show the line numbers.

Yeah we all can loop, but can you any or all? Checking if condition matches for at least one element of an iterable (e.g. list, tuple, set) In Python you can write that nicer with the builtin method any(): But who doesn’t like a one-liner (that is understandable): Very similar is the case if you…
Pressing F5 does not refresh your view anymore but rewinds the current media?F11 does not run the selected JUnit test in Eclipse any more but activates Caps Lock? I have a Logitech K850 keyboard and I unintentionally turned on the function key lock (didn’t even know such a thing existed). Try the following: [Fn] +…
Generally speaking this is how I learned to cache a JSON object in a Node-RED flow with the Change node by setting a flow based variable. Specifically this handles a problem with HomeAssistants light card backed by a MQTT light (defined in the configuration.yaml) only emitting partial values of the light setting when updating. New…
Not everything is like shorts for computer science students – some other things only make sense in certain months. Like my webscrapers for the current water temperature of the outside pool or the warning system for below 0°C degress. To hide them in the HomeAssistant UI I created a helper that is filled with the…
I wanted to know which topics are active on my MQTT server and if there were some skeletons in the closet I could get rid of. Many Iot devices, Node-RED flows and surely some unused topics or old retained topics lead to more or less MQTT being a chaotic museum of topics. This is just…
After expermienting alot with my MQTT server it was pretty polluted with sustained messages and I wanted to get rid of them. The fastest way I got this reliably to work was by deleting the persistence file while the MQTT server was offline. You could delete all or specific topics with a script, too, but…