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@peterc
peterc / CONVENTIONS.md
Last active January 17, 2026 13:46
CONVENTIONS.md file for AI Rails 8 development
  • You MUST NOT try and generate a Rails app from scratch on your own by generating each file. For a NEW app you MUST use rails new first to generate all of the boilerplate files necessary.
  • Create an app in the current directory with rails new .
  • Use Tailwind CSS for styling. Use --css tailwind as an option on the rails new call to do this automatically.
  • Use Ruby 3.2+ and Rails 8.0+ practices.
  • Use the default Minitest approach for testing, do not use RSpec.
  • Default to using SQLite in development. rails new will do this automatically but take care if you write any custom SQL that it is SQLite compatible.
  • An app can be built with a devcontainer such as rails new myapp --devcontainer but only do this if requested directly.
  • Rails apps have a lot of directories to consider, such as app, config, db, etc.
  • Adhere to MVC conventions: singular model names (e.g., Product) map to plural tables (products); controllers are plural.
  • Guard against incapable browsers accessing controllers with `allo
@kmplngj
kmplngj / geekmagic-smalltv-07c9f4.yaml
Last active January 21, 2026 17:29
GeekMagic Display Small TV ESPHome Config
# This ESPHome configuration file is for a GeekMagic Display device (esp01).
# It sets up the device to display pages of text and notifications,
# with customizable intervals and padding. The display is updated
# periodically and can show different pages based on Home Assistant sensors.
# # License & Terms
# **Free and Open Use** - This code may be freely used, modified, and distributed by anyone.
# **Copyleft Requirement** - Any derivative works, modifications, or forks must also be
# distributed freely under the same terms. You cannot restrict access to modified versions.
# **Attribution Note** - This code was primarily written with AI assistance.
@wlib
wlib / LICENSE
Last active April 30, 2024 17:07
Run a shell script with bash, line-by-line, prompted on each command. Useful for running unknown scripts or debugging. Not a secure substitute for understanding a script beforehand.
MIT License
Copyright (c) 2021 Daniel Ethridge
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
@akihikodaki
akihikodaki / README.en.md
Last active January 11, 2026 15:09
Linux Desktop on Apple Silicon in Practice

Linux Desktop on Apple Silicon in Practice

NOTE: Time flies, and it's been almost five years(!) since I wrote this. Beaware the text below is now outdated (e.g., now Asahi Linux has graphics acceleration even better than this). The commands listed are up-to-date.

I bought M1 MacBook Air. It is the fastest computer I have, and I have been a GNOME/GNU/Linux user for long time. It is obvious conclusion that I need practical Linux desktop environment on Apple Silicon.

@niw
niw / README.en.md
Last active August 28, 2025 18:24
How to run Windows 10 on ARM or Ubuntu for ARM64 in QEMU on Apple Silicon Mac

How to run Windows 10 on ARM or Ubuntu for ARM64 in QEMU on Apple Silicon Mac

Here is easy steps to try Windows 10 on ARM or Ubuntu for ARM64 on your Apple Silicon Mac. Enjoy!

NOTE: that this is current, 10/1/2021 state.

Running Windows 10 on ARM

  1. Install Xcode from App Store or install Command Line Tools on your Mac
@koshatul
koshatul / README.md
Last active January 16, 2026 18:16
use Apple Keychain to store GPG Passphrases

gpg-agent setup

Need to setup gpg-agent first, on OSX I use keychain (it also does ssh-agent)

$ brew info keychain
keychain: stable 2.8.5
User-friendly front-end to ssh-agent(1)
https://www.funtoo.org/Keychain
/usr/local/Cellar/keychain/2.8.5 (7 files, 108.5KB) *
@paolocarrasco
paolocarrasco / README.md
Last active January 14, 2026 15:36
How to understand the `gpg failed to sign the data` problem in git

Problem

You have installed GPG, then tried to perform a git commit and suddenly you see this error message after it 😰

error: gpg failed to sign the data
fatal: failed to write commit object

Understand the error (important to solve it later!)

@lattner
lattner / TaskConcurrencyManifesto.md
Last active January 16, 2026 11:02
Swift Concurrency Manifesto
@aallan
aallan / mac-vendor.txt
Last active January 21, 2026 14:56
List of MAC addresses with vendors identities
000000 Officially Xerox
000001 SuperLAN-2U
000002 BBN (was internal usage only, no longer used)
000003 XEROX CORPORATION
000004 XEROX CORPORATION
000005 XEROX CORPORATION
000006 XEROX CORPORATION
000007 XEROX CORPORATION
000008 XEROX CORPORATION
000009 powerpipes?
@wavezhang
wavezhang / java_download.sh
Last active January 22, 2026 02:57
download java from oracle without login
wget -c --no-cookies --no-check-certificate --header "Cookie: oraclelicense=accept-securebackup-cookie" https://download.oracle.com/otn-pub/java/jdk/12.0.2+10/e482c34c86bd4bf8b56c0b35558996b9/jdk-12.0.2_linux-x64_bin.tar.gz