SlackBuilds.org/development/zed

Zed is a fully offline-capable, open source, keyboard-focused, text and
code editor for power users. You can use Zed to edit local files as
well as remote files on any server.

Zed has all features you'd expect from a capable code editor:

- Syntax highlighting for many programming languages (e.g. C, Clojure,
CoffeeScript, C#, CSS, Dart, Erlang, Go, Haml, Haskell, HTML, ini files,
Java, JavaScript, JSON, LogiQL, Lua, Markdown, Nix, PHP, Plist, Protobufs,
Python, Ruby, Shell, XML)

- Code completion: symbols, snippets and property/method completion.

- Built-in linting for some languages with inline markers (JavaScript,
CoffeeScript, JSON, Lua, CSS)

- Multiple cursors

- Split-view editing

- Themes: light and dark themes out of the box and you can easily develop
your own using CSS.

To learn more about Zed's remote editing, look here:

http://zedapp.org/features/edit-remote-files/