diff --git a/modules/capabilities/helix.nix b/modules/capabilities/helix.nix
new file mode 100644
index 0000000..fa7e8ce
--- /dev/null
+++ b/modules/capabilities/helix.nix
@@ -0,0 +1,470 @@
+{ config, ... }:
+let
+  account = config.facts.account;
+in
+{
+  flake.modules.homeManager.helix =
+    {
+      lib,
+      osConfig,
+      pkgs,
+      ...
+    }:
+    let
+      indent = {
+        tab-width = 2;
+        unit = "  ";
+      };
+
+      oxfmt = {
+        name = "oxfmt";
+        only-features = [ "format" ];
+      };
+
+      oxlint = {
+        name = "oxlint";
+        only-features = [
+          "code-action"
+          "diagnostics"
+        ];
+      };
+
+      webLanguageServers = [
+        oxfmt
+        "vtsls"
+        oxlint
+        "tailwindcss-ls"
+      ];
+
+      markupLanguageServers = primary: [
+        oxfmt
+        primary
+        "tailwindcss-ls"
+        "emmet-ls"
+      ];
+
+      ruffFormatter = pkgs.writeShellApplication {
+        name = "helix-ruff-format";
+        runtimeInputs = [ pkgs.ruff ];
+        text = ''
+          if (( $# != 1 )); then
+            echo "usage: helix-ruff-format <filename>" >&2
+            exit 2
+          fi
+
+          filename=$1
+          ruff check \
+            --fix \
+            --force-exclude \
+            --exit-zero \
+            --no-cache \
+            --stdin-filename "$filename" \
+            - \
+          | ruff format \
+            --force-exclude \
+            --stdin-filename "$filename" \
+            - \
+          | ruff check \
+            --fix \
+            --force-exclude \
+            --select=I001 \
+            --exit-zero \
+            --no-cache \
+            --stdin-filename "$filename" \
+            -
+        '';
+      };
+    in
+    {
+      programs.helix = {
+        enable = true;
+
+        extraPackages = with pkgs; [
+          ripgrep
+          fd
+          wl-clipboard
+          stylua
+          taplo
+          yamlfmt
+          lua-language-server
+          nixd
+          nixfmt
+          dafny
+          vscode-langservers-extracted
+          tailwindcss-language-server
+          rust-analyzer
+          rustfmt
+          astro-language-server
+          tinymist
+          typstyle
+          ty
+          ruff
+          vtsls
+          pkgs.oxlint
+          pkgs.oxfmt
+          emmet-language-server
+          svelte-language-server
+        ];
+
+        settings = {
+          theme = "lux-kanagawa";
+
+          editor = {
+            scrolloff = 10;
+            default-yank-register = "+";
+            cursorline = true;
+            completion-timeout = 5;
+            color-modes = true;
+            popup-border = "all";
+
+            file-picker.hidden = false;
+
+            indent-guides.render = true;
+
+            inline-diagnostics.cursor-line = "hint";
+
+            lsp.display-inlay-hints = true;
+
+            soft-wrap.enable = true;
+
+            statusline = {
+              left = [
+                "mode"
+                "spinner"
+                "version-control"
+                "file-name"
+                "read-only-indicator"
+                "file-modification-indicator"
+              ];
+              right = [
+                "diagnostics"
+                "selections"
+                "position-percentage"
+                "position"
+                "file-type"
+              ];
+              separator = "";
+              mode = {
+                normal = "NORMAL";
+                insert = "INSERT";
+                select = "SELECT";
+              };
+              diagnostics = [
+                "error"
+                "warning"
+                "info"
+                "hint"
+              ];
+              workspace-diagnostics = [
+                "error"
+                "warning"
+                "info"
+                "hint"
+              ];
+            };
+
+            whitespace = {
+              render = {
+                tab = "all";
+                nbsp = "all";
+                nnbsp = "all";
+              };
+              characters = {
+                tab = "»";
+                nbsp = "␣";
+              };
+            };
+          };
+
+          keys = {
+            insert."C-g" = "signature_help";
+
+            normal = {
+              esc = [
+                "collapse_selection"
+                "keep_primary_selection"
+              ];
+
+              "C-h" = "jump_view_left";
+              "C-j" = "jump_view_down";
+              "C-k" = "jump_view_up";
+              "C-l" = "jump_view_right";
+
+              "[".h = "goto_prev_change";
+              "]".h = "goto_next_change";
+
+              g.I = "goto_implementation";
+
+              space = {
+                space = "buffer_picker";
+                f = ":format";
+                q = "diagnostics_picker";
+                "/" = "search";
+
+                b.d = ":buffer-close";
+                c.a = "code_action";
+                d.s = "symbol_picker";
+                h.r = ":reset-diff-change";
+                r.n = "rename_symbol";
+                t.h = ":toggle lsp.display-inlay-hints";
+
+                s = {
+                  f = "file_picker";
+                  g = "global_search";
+                  d = "diagnostics_picker";
+                  r = "last_picker";
+                  "/" = "global_search";
+                };
+              };
+            };
+          };
+        };
+
+        themes.lux-kanagawa = {
+          inherits = "kanagawa";
+          "ui.gutter" = {
+            fg = "sumiInk6";
+          };
+        };
+
+        languages = {
+          language-server = {
+            dafny = {
+              command = "dafny";
+              args = [ "server" ];
+            };
+
+            emmet-ls = {
+              command = "emmet-language-server";
+              args = [ "--stdio" ];
+            };
+
+            lua-language-server = {
+              config.Lua = {
+                runtime.version = "LuaJIT";
+                signatureHelp.enable = true;
+                diagnostics.globals = [ "vim" ];
+                telemetry.enable = false;
+                completion.callSnippet = "Replace";
+                hint.enable = true;
+              };
+            };
+
+            nixd = {
+              config.nixd = {
+                nixpkgs.expr = "import ${pkgs.path} {}";
+                options = {
+                  nixos.expr = ''(builtins.getFlake "path://${account.nixosConfigurationPath}").nixosConfigurations.${osConfig.facts.machine.name}.options'';
+                  home-manager.expr = ''(builtins.getFlake "path://${account.nixosConfigurationPath}").nixosConfigurations.${osConfig.facts.machine.name}.options.home-manager.users.type.getSubOptions []'';
+                };
+                formatting.command = [ "nixfmt" ];
+              };
+            };
+
+            oxfmt = {
+              command = "oxfmt";
+              args = [ "--lsp" ];
+              required-root-patterns = [
+                ".oxfmtrc.json"
+                ".oxfmtrc.jsonc"
+                "oxfmt.config.ts"
+                "package.json"
+                "vite.config.ts"
+              ];
+            };
+
+            oxlint = {
+              command = "oxlint";
+              args = [ "--lsp" ];
+              required-root-patterns = [
+                ".oxlintrc.json"
+                ".oxlintrc.jsonc"
+                "oxlint.config.ts"
+                "package.json"
+                "vite.config.ts"
+              ];
+            };
+
+            tinymist = {
+              config.formatterMode = "typstyle";
+            };
+
+            vtsls = {
+              command = "vtsls";
+              args = [ "--stdio" ];
+              config.vtsls.autoUseWorkspaceTsdk = true;
+            };
+          };
+
+          language = [
+            {
+              name = "lua";
+              auto-format = true;
+              formatter = {
+                command = "stylua";
+                args = [
+                  "--indent-type"
+                  "Spaces"
+                  "--indent-width"
+                  "2"
+                  "--search-parent-directories"
+                  "--respect-ignores"
+                  "--stdin-filepath"
+                  "%{buffer_name}"
+                  "-"
+                ];
+              };
+            }
+            {
+              name = "nix";
+              auto-format = true;
+              language-servers = [ "nixd" ];
+            }
+            {
+              name = "dafny";
+              scope = "source.dafny";
+              injection-regex = "dafny";
+              file-types = [
+                "dfy"
+                "dafny"
+              ];
+              roots = [ ".git" ];
+              comment-token = "//";
+              block-comment-tokens = {
+                start = "/*";
+                end = "*/";
+              };
+              inherit indent;
+              auto-format = true;
+              language-servers = [ "dafny" ];
+            }
+            {
+              name = "json";
+              language-servers = [
+                oxfmt
+                "vscode-json-language-server"
+              ];
+            }
+            {
+              name = "jsonc";
+              language-servers = [
+                oxfmt
+                "vscode-json-language-server"
+              ];
+            }
+            {
+              name = "javascript";
+              auto-format = true;
+              language-servers = webLanguageServers;
+            }
+            {
+              name = "jsx";
+              auto-format = true;
+              language-servers = webLanguageServers ++ [ "emmet-ls" ];
+            }
+            {
+              name = "typescript";
+              auto-format = true;
+              language-servers = webLanguageServers;
+            }
+            {
+              name = "tsx";
+              auto-format = true;
+              language-servers = webLanguageServers ++ [ "emmet-ls" ];
+            }
+            {
+              name = "css";
+              language-servers = markupLanguageServers "vscode-css-language-server";
+            }
+            {
+              name = "scss";
+              language-servers = markupLanguageServers "vscode-css-language-server";
+            }
+            {
+              name = "less";
+              scope = "source.css.less";
+              injection-regex = "less";
+              file-types = [ "less" ];
+              grammar = "css";
+              block-comment-tokens = {
+                start = "/*";
+                end = "*/";
+              };
+              inherit indent;
+              auto-format = true;
+              language-servers = markupLanguageServers "vscode-css-language-server";
+            }
+            {
+              name = "html";
+              language-servers = markupLanguageServers "vscode-html-language-server";
+            }
+            {
+              name = "rust";
+              inherit indent;
+            }
+            {
+              name = "python";
+              inherit indent;
+              auto-format = true;
+              language-servers = [
+                "ty"
+                "ruff"
+              ];
+              formatter = {
+                command = lib.getExe ruffFormatter;
+                args = [ "%{buffer_name}" ];
+              };
+            }
+            {
+              name = "astro";
+              auto-format = true;
+              language-servers = [
+                "astro-ls"
+                oxlint
+                "tailwindcss-ls"
+                "emmet-ls"
+              ];
+            }
+            {
+              name = "svelte";
+              auto-format = true;
+              language-servers = [
+                oxfmt
+                "svelteserver"
+                oxlint
+                "tailwindcss-ls"
+                "emmet-ls"
+              ];
+            }
+            {
+              name = "typst";
+              auto-format = true;
+            }
+            {
+              name = "toml";
+              auto-format = true;
+              language-servers = [ "taplo" ];
+              formatter = {
+                command = "taplo";
+                args = [
+                  "format"
+                  "--stdin-filepath"
+                  "%{buffer_name}"
+                  "-"
+                ];
+              };
+            }
+            {
+              name = "yaml";
+              auto-format = true;
+              language-servers = [ ];
+              formatter = {
+                command = "yamlfmt";
+                args = [ "-" ];
+              };
+            }
+          ];
+        };
+      };
+    };
+}
diff --git a/modules/profiles/host-base.nix b/modules/profiles/host-base.nix
index 57ac844..6c52843 100644
--- a/modules/profiles/host-base.nix
+++ b/modules/profiles/host-base.nix
@@ -25,6 +25,7 @@ in
         hmModules.facts
         hmModules.syncthing
         hmModules.shell
+        hmModules.helix
         hmModules.neovim
       ];
     };