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@peterc
peterc / CONVENTIONS.md
Last active April 23, 2025 06:55
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
@andrasbacsai
andrasbacsai / firewall.sh
Last active April 19, 2025 14:31
Update a Hetzner Firewall rule with your IP address
#!/bin/bash
# Script to update a firewall rule in a Hetzner Firewall with your current IP address.
# Good if you would like to restrict SSH access only for your current IP address (secure).
#################
# WARNING: This script will overwrite all rules in the firewall rules, so make sure you
# added all the required rules.
# I use a separate firewall rule just for SSH access.
#################