awesome-cheatsheets keeps one file per topic and no version marks

File extensions are decoration: Go is a .md and MySQL is a .sh

The table of contents links to files whose extensions do not describe their contents. These are the literal paths it points at:

languages/golang.md
databases/mysql.sh
frontend/typescript.ts

Bash, the one entry filed under Command line interface, is languages/bash.sh, but the same extension is used for MySQL, MongoDB, Redis, cURL, Git, Docker, Nginx, PM2, AWS CLI, Heroku CLI and macOS. Markdown holds Go, Java, Python, TypeScript, Kubernetes, GCP and Visual Studio Code. Extensions were assigned per entry by hand and carry no consistent meaning. The practical cost shows up in the tools a reader already has: an editor picks its syntax mode from the extension, a static site generator picks a highlighter from it, and a diff view colours a SQL cheat sheet as a shell script. Open the file before trusting the colouring.

TypeScript is listed twice, in two categories, in two files

TypeScript appears under Languages as languages/typescript.md, and again under Frontend as frontend/typescript.ts. Two directories, two files, one subject. Nothing in the repository marks either as canonical, and the frontend copy sits among HTML5, CSS3, React, Vue, Tailwind, Ember, Angular and AngularJS, where the entry is about using the type system inside a component tree, while the languages copy sits next to C, Go, Java and PHP. The consequence is a fork in the road for anyone maintaining it. A correction to one file leaves the other wrong, and a reader who lands on the wrong one cannot tell from the content that a second version exists. It is also the reason a search for TypeScript in this repository returns two hits of unequal scope, and which one you read depends on which link you clicked first.

The categories are one maintainer's taxonomy, and XML files under Imperative

The top-level split is Languages, Backend, Frontend, Databases and Tools, and Tools splits again into Development and Infrastructure. Inside Languages the sub-headings are Command line interface, Imperative and Functional, which is a paradigm split rather than a topical one. Bash sits alone under Command line interface. C, C#, Go, Java, PHP, Python and XML share the Imperative heading, and XML is the entry that shows the taxonomy is a personal filing habit rather than a derived classification. JavaScript and TypeScript share Functional. The consequence for a reader looking for something is that the category is not a reliable signal: XML is a data format, and a language cheat sheet you cannot find because you expected a different heading is a small waste of time on a collection whose whole value is speed.

commitlint.config.js and .husky/ exist with no package.json to run them

The top-level tree is .gitignore, .husky/, LICENSE, README.md, _design/, backend/, commitlint.config.js, databases/, frontend/, languages/ and tools/. There is no package.json in that listing, which leaves commitlint.config.js and the .husky/ hook directory with nothing to install their tooling from. The intended workflow is a commit message check before code lands, and the configuration for it is committed, but the manifest that would declare the dev dependency is not in the tree as listed. A contributor who clones and runs npm install has no manifest to work from, so the hook never fires for them. Any project that keeps a lint rule this way is only enforced for people who set it up locally, which means the guarantee is weaker than the presence of the config file suggests.

AngularJS and Angular (2+) sit in one list because nothing is dated

The frontend list holds both Angular (2+) and AngularJS, and the tools list holds both Vim and Visual Studio Code. Both pairs describe software from different eras, and the collection keeps them side by side without a marker on either. No sheet in the tree carries a version field, a last-reviewed date, or a link to the upstream page it summarises. The author does say most of the content comes from official documentation and some books he has read, which sets a floor for accuracy at the time of writing and nothing after that. The last push was on 2026-04-12 to the master branch and there are no releases, so a reader cannot tell from the repository which sheets were revisited recently and which have sat untouched for years. For a command with a renamed flag, that gap is the whole risk.

The site is a directory listing, and the tree has no generator for it

The README points to a website directory at lecoupa.github.io/awesome-cheatsheets/ rather than to a documentation site with its own tooling. The repository's top-level listing contains no site source directory, no template and no build script, so the published directory is not something you can regenerate from a clone of what is here. The descriptions also promise that each cheatsheet includes everything you should know in one single file, which reads as a single download if you arrive from the repository description; in practice the material is split across languages/, backend/, frontend/, databases/ and tools/, one file per topic. Anyone wanting a local copy should clone and read the files, and anyone wanting a printable version has to render it themselves, since the project publishes no PDF.

Every pull request is reviewed by one person, and no CONTRIBUTING.md exists

The contributing paragraph is one sentence: submit changes via pull request and the maintainer reviews them before merging. There is no CONTRIBUTING.md among the top-level files, no code of conduct, and no test or lint configuration for content, so nothing checks a new sheet's format, filename, extension or heading level. The extension problem in the existing tree is the visible result: .sh for a database, .md for a language, php.php for PHP, and C# stored as a C%23.txt because the hash character has to be escaped in a URL. A new contributor therefore cannot predict what the reviewer wants, and the only signal is the shape of the files already there. Throughput and consistency both depend on that one reviewer, and the project publishes no response time.

Editorial conclusion

Use this collection as a skim index before you open the official documentation, not as a reference to paste from, because no sheet records which version of the tool it describes. Check the file extension before you trust an editor or highlighter, remember that TypeScript exists twice, once under languages/ and once under frontend/, and expect to be the second reader of a sheet whose upstream command syntax has since changed.

Frequently asked questions

Official sources

1. Official documentation
2. Official README
3. Project repository