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clash

Obviously code-golfed LOC is bullshit. 50 files and GUI for a near-trivial functionality is excessive, though.
Bold accusation ;)

You forgot to argue about the LOC vs file count issue.

Also, you are wrong: None does auto sleep on script exit.

You say "No need to write a tool", then immediately write a tool. Brilliant :)

My first attempt was a shell script almost exactly like yours. Then I thought I want to be able to set SUID so I don't have to use sudo. This ruled out the shell script. I could have just done a bunch of 'system("pmset ...")' calls but thought I might as well use the native commands.

Yeah, most of these repositories contain more files than caffeinate+ has lines of code.

The API call that 'sudo pmset -a disablesleep 1' does is literally the first thing caffeine+ does. But is only part of the full solution: As soon as the lid closes the command is automatically reverted so you can't forget to do it yourself. Also if you kill caffeinate+, the MacBook is put to sleep when the lid is still closed.

Yeah, I obviously also did the research prior to implementing my solution.

I did not want GUI, just super simple caffeinate-like CLI. Also I wanted auto-shutdown afterwards.

Can your one line terminal invocation automatically put the MacBook to sleep when you are connected via ssh and the connection is lost?
Nope, not thanking you now or later.

1) It is an insane bloat if you just want that one feature. 2) There is no CLI, just GUI.

I found this before I implemented my solution and it did not solve my problem:

1) It does not behave like caffeine where I can just kill the process and the behavior is reverted.

2) It does not put the MacBook to sleep automatically.

1) Because you will eventually forget to reactivate it, which then leads to obvious problems.

2) Because you can for example be connected via ssh: You run the script and if your connection is disconnected, caffeinate+ shuts down the MacBook.

Edit: The API call that 'sudo pmset -a disablesleep 1' does is literally the first thing caffeine+ does. As soon as the lid closes the command is automatically reverted so you can't forget to do it yourself.

Haha, every operating system has its quirks. The auto reboot is certainly a very nasty one.
I wrote a small caffeine-like macOS command-line utility to keep your MacBook awake when you close the lid.

This can be handy when you have a long running task active but need to close your MacBook – for example to change trains, head home from a café or commute to the office.

Show HN: PickyCal – Filter upcoming and future events into your calendar

https://pickycal.com/

I wanted upcoming events in my calendar, but not entire schedules full of things I don’t follow. So I built PickyCal.Pick an event source, filter it, and subscribe through CalDAV or an ICS link. For example: Starship launches, the next James Bond cinema release, Classic Tetris World Championship finals. Filters support &, |, !, and parentheses.PickyCal regularly checks for new events and...

( Read More... | no comments | on HN )
Re:New York Wants to Ctrl+Alt+Delete Your 3D Printer on Wednesday February 04, 2026 @07:25AM (#46885015)
This is an easy one:

bool isRestricted(uint8_t* /* data */) { return true; } // Might catch a few false positives

and

popup("This is a restricted model. If you are not in the state of New York, please flash the international firmware ([link]) to print restricted parts.");

It can also handle STL, step and all kinds of other formats.

Re:Founding Is a Snowball on Monday February 02, 2026 @09:28AM (#46856418)
You left out the higher entity that takes away a significant portion of the snow that was accumulated at regular intervals.

It doesn't need to ruin the metaphor, though: The sun could do that job. It could also explain the fact that the portion that's taken differs depending on where on earth you are creating the snowball.

This appears to be even more of a problem with EVs and their regenerative breaking and I wonder whether this could not be easily fixed by software: "Breaks were not used recently or car did not move in some time? ⟹ Temporarily disable regenerative breaking for a few minutes until the break pads can be assumed to be clear again."
Re:A second generation E-Ink picture frame on Monday November 25, 2024 @06:19PM (#42241106)
Hey guys,

I just wanted to show off the new battery-powered E-Ink picture frame that I have been working on for the last couple of months.

It took a lot of work. I hope you like it.

Actually my devices can download from remote sources as well. An iCloud bridge is be necessary, though.
Very nice. If you don't have the time to build one yourself, you can also buy them here:

https://framelabs.eu/

Note: I sell them.

Re:Show HN: Building a 42-inch E-Ink frame for generative art on Thursday October 12, 2023 @06:23AM (#37855382)
Shameless plug: I build devices like that and sell them. Battery powered.

https://framelabs.eu/en/product/artframe-31/

I use the 31.2" panel because it is 40% cheaper and has higher DPI, but the 42" panel is also possible.

I'll rephrase. Learn about the basic container data structures like linked list, vector, set, map, hash, tree, queue, heap.

Study time complexity of insertion, deletion, search, etc. in these data structures. Then you will understand when to use which. Big O notation is used to express time complexity for expected runtime of the operations.

Knowledge about complexity classes is an issue that at least many hobbyists seem to miss.
I went online about a year ago. So yes, I already sold a lot of devices.
This calender-thing really seems to resonate with people!

I built something similar but more versatile, where you can either display images or feed the display with whatever information you want remotely. And it runs on a battery for a whole year:

https://framelabs.eu/en/

You can't define more than 8. The API allows only 3 bit input. I also tinkered with the lookup table, and was able to create a lot of different gray shades, but I was not able to produce ~40-60% gray.
The written sizes are correct. By default I will manufacture the two smaller displays with the same frame dimensions. The small device in the comparison image is from a custom order, which allows for a better size comparison. For custom orders I can create the frames in arbitrary sizes accurate to a millimeter. I'll add a note.
I actually have an Inkplate at home. The 8 gray shades they support are unfortunately not evenly distributed, which makes it difficult to display images in good quality.

EPDiy looks interesting, though.

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