# Startup Skills: Vladimir Dementyev > Every skill by Vladimir Dementyev in the index, with a line saying when to use each one. I index these, I do not host them. Every entry points at the original author's repo and carries a source byline. ## Entries (1) - [Layered Rails](https://github.com/palkan/layered-rails-skills/blob/master/layered-rails/skills/layered-rails/SKILL.md) by Vladimir Dementyev: Use when Rails controllers and models have grown fat and layers are blurred. ## Links - [Page](https://startupskills.dev/palkan): the same list, for a person. - [The whole index](https://startupskills.dev/llms.txt): all 189 entries. - [Skills index](https://startupskills.dev/skills): every skill, with search.