diff --git a/common/helix/languages.toml b/common/helix/languages.toml
index e69de29..dd19718 100644
--- a/common/helix/languages.toml
+++ b/common/helix/languages.toml
@@ -0,0 +1,31 @@
+[[language]]
+name = "javascript"
+shebangs = ["deno", "node"]
+roots = ["deno.json", "package.json", "tsconfig.json"]
+config = { enable = true, lint = true, unstable = true }
+language-server = { command = "deno", args = ["lsp"], language-id = "javascript" }
+auto-format = true
+
+[[language]]
+name = "jsx"
+shebangs = ["deno", "node"]
+roots = ["deno.json", "package.json", "tsconfig.json"]
+config = { enable = true, lint = true, unstable = true }
+language-server = { command = "deno", args = ["lsp"], language-id = "javascriptreact" }
+auto-format = true
+
+[[language]]
+name = "typescript"
+shebangs = ["deno", "node"]
+roots = ["deno.json", "package.json", "tsconfig.json"]
+config = { enable = true, lint = true, unstable = true }
+language-server = { command = "deno", args = ["lsp"], language-id = "typescript" }
+auto-format = true
+
+[[language]]
+name = "tsx"
+shebangs = ["deno", "node"]
+roots = ["deno.json", "package.json", "tsconfig.json"]
+config = { enable = true, lint = true, unstable = true }
+language-server = { command = "deno", args = ["lsp"], language-id = "typescriptreact" }
+auto-format = true