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I have a weird issue with systemd. First off I’m sorry if I’m missing something that is supposed to be obvious but its the first time I’m trying out nixos and I have very little experience with nix itself. Anyway. I’ve installed nixos and enabled gpg-agent (with ssh enabled). I […]

I very frequently retrieve commands from my bash history (^R) and start modifying it to fit my current needs, but if I change my mind and break (^C) to cancel it altogether, whatever changes I made end up overwriting that original line in my ~/.bash_history. How do I turn this […]

Why do LED lights flicker even when turned off, and what hidden electrical issues—such as residual current, faulty wiring, incompatible switches, or poor-quality drivers—cause this unexpected flickering in modern lighting systems?

I had a .docx file which I changed it to a .dat file. But after changing Windows, the new Windows does not allow to do any thing with .dat file, e.g. it couldn’t be copied & open (by any application) even if I change the extension to .docx. It sounds […]

I have a video with a stereo audio recorded on iPhone 15 Pro. This smartphone model has three microphones. If the phone is in the portrait position, then the microphones are in this order (I think): one at the top near the ear speaker entrance, another by the camera lenses […]