Hacker News: LittleLily

New comment by LittleLily in "Anecdotally, programmers dislike "reduce""

LittleLily — Wed, 16 Sep 2026 23:31:04 +0000

I agree it's a bit annoying, but a better solution than using `as` is just telling reduce what its generic type should be:

tasks.reduce boolean>>((acc, item) => ..., {})

Also imo it's cleaner to reduce to an object with something like this as the callback:

(acc, item) => ({ ...acc, [item.label]: t => t.label === item.label })

New comment by LittleLily in "Turning a dumb AC unit smart (without losing my security deposit)"

LittleLily — Thu, 30 Jul 2026 05:13:06 +0000

Any reason why you didn't just use ESPHome for the firmware?

It even has a component specifically for the ULN2003 stepper motor driver you were using

https://esphome.io/components/stepper/#uln2003-component

New comment by LittleLily in "Keychron announces first open-source firmware for gaming mice"

LittleLily — Thu, 30 Jul 2026 04:13:01 +0000

I wonder if it would be possible to get ZMK working on it instead, since that's built primarily for wireless support, and also supports wired configurations too as of recently. Seems like the STM32 that the Q6 pro uses is supported, so you might have some luck: https://zmk.dev/docs/hardware

New comment by LittleLily in ""Parse, don't validate" through the years with C++"

LittleLily — Thu, 30 Apr 2026 12:05:17 +0000

In my experience it makes even more sense in functional programming languages, not less, since they usually also have more powerful type systems that help with actually representing parsed vs unparsed data.

New comment by LittleLily in "The Secret Life of NaN (2018)"

LittleLily — Tue, 28 Apr 2026 01:28:37 +0000

DEL is unicode codepoint U+007F, which is the byte 0x7F in UTF-8, not 0xFF. Perhaps you were thinking of ÿ which is codepoint U+00FF, which encodes to the bytes 0xC3 0xBF in UTF-8.

New comment by LittleLily in "How Wake-On-LAN works (2020)"

LittleLily — Thu, 16 Apr 2026 04:08:45 +0000

Here's an equivalent shell script that only uses bash builtins, so no other software required:

  #!/bin/bash 
  mac="\\x${1//:/\\x}" 
  wol="\xFF\xFF\xFF\xFF\xFF\xFF" 
  for i in {1..16}; do wol+="$mac"; done 
  printf "$wol" > "/dev/udp/$2/9"