Full LSP (semantic autocomplete, diagnostics, go-to-definition), each server installed with one tap from the editor: TypeScript/JavaScript, Python, HTML/CSS/JSON, Markdown, YAML, Dockerfile, Bash, Vue, Svelte, Astro, GraphQL, MDX, Prisma and Angular. CSS helpers run alongside: Emmet, CSS variables, Some Sass, CSS Modules, Stylelint (if the project configures it) and UnoCSS; Tailwind if the project ships it. Limits: Bash runs without ShellCheck, YAML does not fetch remote schemas, at most 2 helper servers run at once, and Vue, Svelte, Astro, MDX and Angular use the TypeScript package. GraphQL needs a graphql-config file in the project and Angular an angular.json. Syntax highlighting covers 39 languages; Kotlin, Java, Go, Rust, C, C++, C#, PHP, Ruby, SQL, Dart, Swift, Scala, R, XML, PowerShell, TOML, INI, Gradle and Properties have highlighting but no one-tap language server. From the editor's Run button, JavaScript and TypeScript (on the bundled Node.js, no type-check), C, Python, Ruby, PHP, Java (experimental and limited: a BeanShell interpreter, not a full compiler, and most object-oriented code, generics, lambdas and printf don't run), Kotlin, Shell and SQL run on the device from the first launch, 16 languages and file types in all; Lua, Go and Rust-style scripts (Rhai) are optional packs you download. C++, C#, Perl, Zig, Dart and Swift have no installable runner yet.