Packages make Pulsar do amazing things.
Displaying all packages which provide the autocomplete.provider service.
Zurb Foundation for Apps element and attribute autocompletions
Hardware Description File (for Hardware Connectors, *.hdfs) language support in Atom
Extract the JSX or XML structure in the file and display the diagram
Custom XML element and attribute autocompletion for Lexema
Atom IDE plugin for Elixir, tracking master of the elixir-lsp fork of ElixirLS
Syntax highlighting and autocompletion for Leaf 3. Still under heavy construction: see repo for issues & current progress. Leaf Kit support coming after syntax is established.
Open files and directories à la Emacs ido-mode. Can also create new files and directories if they don't exist.
The congolexicomatisation language in an Atom package four your dummy text !
Syntax highlighting, snippets, and autocomplete for Phoenix Modeling Language