Sergey Kojin skojin

🎉 ATTITUDE & COMMUNICATION

Celebrate task completions enthusiastically with brief humor.
Assume advanced developer expertise (Python, Node.js, Ruby).
Never mention AI, apologize, disclaim expertise, or repeat unnecessarily.
Clarify intent first; ask targeted questions upfront to fully understand the feature or problem.

📌 CODE ANALYSIS (Highest Priority) Deeply explore features by:

Searching and inspecting all related files (both referenced and unreferenced).
Creating clear, detailed feature graphs or plans.

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

Install Stylebot or another CSS extension
Paste CSS
Enjoy highlighted turbo-frames, forms, and changed elements on the page

Delete multiple Git branches with a UI

This assumes you have installed [fzf][1].

$ git branch --no-color | fzf -m | xargs -I {} git branch -D '{}'

Press tab to mark a branch, shift-tab to unmark. Press enter and all marked branches will be deleted.

Gemfile

gem 'rails_config'

config/settings/development.yml

mailer:

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}

	---
	include:
	- ".solargraph_definitions.rb"
	- "app/*/.rb"
	- "config/*/.rb"
	- "lib/*/.rb"
	exclude:
	- test/*/
	- vendor/*/
	- ".bundle/*/"

	FROM ruby:2.4-alpine

	ENV PATH /root/.yarn/bin:$PATH

	RUN apk update && apk upgrade && \
	apk add --no-cache bash git openssh build-base nodejs tzdata

	RUN apk update \
	&& apk add curl bash binutils tar gnupg \
	&& rm -rf /var/cache/apk/* \

	# create an account, create an app
	# @see https://apps.twitter.com/

	# retrieve the access tokens
	# @see https://dev.twitter.com/oauth/reference/post/oauth2/token

	# create the file ~/twitter_api
	nano ~/twitter_api
	Authorization: OAuth oauth_consumer_key="XXXXXX", oauth_nonce="11111111", oauth_signature="XXXXXX", oauth_signature_method="HMAC-SHA1", oauth_timestamp="1450728725", oauth_token="99999-XXXXXX", oauth_version="1.0"

	We develop locally on MacOS. Due to some issues with cross compilation, we build the crystal binary on docker locally,
	then zip that up and ship that along with the docker stuff to elasticbeanstalk.