{
  pkgs,
  lib,
  isDarwin,
  ...
}:
{
  programs.vscodium = {
    enable = true;
    package = pkgs.vscodium;

    profiles.default = {
      extensions =
        (with pkgs.vscode-extensions; [
          charliermarsh.ruff
          editorconfig.editorconfig
          gruntfuggly.todo-tree
          hediet.vscode-drawio
          jnoortheen.nix-ide
          mechatroner.rainbow-csv
          ms-toolsai.jupyter
          ms-python.python
          ms-vscode-remote.remote-ssh
          myriad-dreamin.tinymist
          rust-lang.rust-analyzer
          timonwong.shellcheck
          unifiedjs.vscode-mdx
        ])
        ++ pkgs.nix4vscode.forOpenVsx [
          "akamud.vscode-theme-onedark"
          "astral-sh.ty"
          "modular-mojotools.vscode-mojo"
        ]
        ++ lib.optionals (!isDarwin) (
          with pkgs.vscode-extensions;
          [
            # markdown-pdf pins ungoogled-chromium (Linux-only) as its PDF
            # renderer. On macOS, install it from the marketplace by hand and set
            # markdown-pdf.executablePath to Chrome/Brave, or render via typst.
            yzane.markdown-pdf
          ]
        );

      userSettings = {
        "editor.fontFamily" = "'JetBrains Mono', monospace";
        "editor.fontSize" = 14;
        "editor.formatOnSave" = true;
        "workbench.colorTheme" = "One Dark Pro";
        "explorer.confirmDragAndDrop" = false;
        "explorer.confirmDelete" = false;
        "git.confirmSync" = false;
        "git.enableSmartCommit" = true;
        "files.associations" = {
          "*.qmd" = "markdown";
        };
      };
    };
  };
}