Tombi

Tombi is a TOML toolkit with a formatter, linter and language server. It already provides schema-based validation and completion for pixi.toml out of the box.

There is an unofficial fork of tombi that adds a pixi extension, similar to tombi's Cargo extension: it shows the available versions of conda packages in your pixi.toml dependencies. This is what it looks like in diffle:

You can install it using pixi global:

pixi global install -c https://prefix.dev/yolo-forge -c conda-forge tombi-pavelzw

pixi global puts tombi into ~/.pixi/bin, so it is available on your PATH. Depending on your editor, you might need to configure it to use this tombi instead of a bundled one.

VS Code#

The Tombi extension prefers tombi from a virtual environment or node_modules in your workspace over the one on your PATH. To always use the fork, set its path in your user settings:

{
  "tombi.path": "/home/<user>/.pixi/bin/tombi"
}

Zed#

Point the Tombi extension to the fork in your Zed settings:

{
  "lsp": {
    "tombi": {
      "binary": {
        "path": "/home/<user>/.pixi/bin/tombi",
        "arguments": ["lsp"]
      }
    }
  }
}

diffle#

diffle uses tombi lsp for TOML files whenever tombi is on your PATH, so no configuration is needed. You can check which language server it picks up with diffle lsp.