nq VS HexFiend

If you want something quick and janky, I suggest nq. It's stupidly simple and lightweight; it just requires that everyone is running as the same user. And only lets exactly one job of any kind run in a given queue. There's basically zero configuration; just nq , and it'll either start running , or will wait its turn.

For your ad-hoc uses, I would introduce nq. It's an extremely lightweight queuing system, which gives you two things with minimal overhead:

I'm already aware of alternatives which I will consider (at, nq, snooze, but I still want an accurate lightweight CLI stopwatch/timer app and the script otherwise works well--this is more of an exercise on understanding background processes and could be handy in other scripts. Or if the attempt is considdered hacky and ill-advised, I'm curious of an alternative implementation. I just feel nothing is more simple than a very lightweight C-based timer app that exits 0 after specified time has elapsed and don't want to run a cron job or even a while sleep 1 loop for a reminder (sleep isn't even a builtin...).

Interesting project. Unfortunate that its name conflicts with one of nq’s executables (https://github.com/leahneukirchen/nq), but I’m not sure anything can be done about it.

nq

For macOS users, there's also native app Hex Fiend (open source) which also has a pattern language.

https://hexfiend.com

* HexFiend - a hex editor, but with "binary templates" feature : https://github.com/HexFiend/HexFiend

First we need to download these three Applications: Hackintool, AWEDIDEditor and HexFiend

For MacOS, I use HexFiend. It has TCL-based binary templates (fairly easy to write) and a CLI launcher (hexf)

https://hexfiend.com

https://github.com/HexFiend/HexFiend

Shout out to Hex Fiend! My favorite feature is the template system[0]. It makes it much easier to figure out file formats for which you have no documentation. You write a little tcl code to describe the parts of the format you understand as you go.

[0] https://github.com/HexFiend/HexFiend/tree/master/templates

I recently made a visualization template of ZIP file contents for HexFiend. The format is certainly wonky, and some writers (I’m looking at you, macOS) don’t get it quite right: https://github.com/HexFiend/HexFiend/blob/master/templates/A...

Hex Fiend - Fast, open source, hex editor for macOS with support for viewing binary diffs.

The topo sort means we'll write [100, 200) first, so its source data is not overwritten.

Here is Hex Fiend's B+tree: https://github.com/HexFiend/HexFiend/blob/master/framework/s...