diff --git a/.envrc b/.envrc
new file mode 100644
index 00000000..60af40a5
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,2 @@
+use flake . --show-trace
+dotenv_if_exists .env
diff --git a/.gitignore b/.gitignore
index 0a23210f..908ff842 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 *.deb
 *.rpm
 miniflux-*
+.direnv/
diff --git a/.helix/languages.toml b/.helix/languages.toml
new file mode 100644
index 00000000..61211558
--- /dev/null
+++ b/.helix/languages.toml
@@ -0,0 +1,44 @@
+[language-server]
+nil = { command = "nil" }
+taplo = { command = "taplo", args = ["lsp", "stdio"] }
+yaml-language-server = { command = "yaml-language-server", args = ["--stdio"] }
+marksman = { command = "marksman", args = ["server"] }
+vscode-json-language-server = { command = "vscode-json-language-server", args = [
+  "--stdio",
+], config = { json = { validate = { enable = true } } } }
+gopls = { command = "gopls", config = { staticcheck = true } }
+
+[[language]]
+name = "nix"
+auto-format = true
+formatter = { command = "nixpkgs-fmt" }
+language-servers = ["nil"]
+
+[[language]]
+name = "toml"
+auto-format = true
+language-servers = ["taplo"]
+
+[[language]]
+name = "yaml"
+auto-format = true
+formatter = { command = "prettier", args = ["--parser", "yaml"] }
+language-servers = ["yaml-language-server"]
+
+[[language]]
+name = "json"
+auto-format = true
+formatter = { command = "prettier", args = ["--parser", "json"] }
+language-servers = ["vscode-json-language-server"]
+
+[[language]]
+name = "markdown"
+auto-format = true
+formatter = { command = "prettier", args = ["--parser", "markdown"] }
+language-servers = ["marksman"]
+
+[[language]]
+name = "go"
+auto-format = true
+language-servers = ["gopls"]
+formatter = { command = "gofumpt" }
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 00000000..87d1f954
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1757545623,
+        "narHash": "sha256-mCxPABZ6jRjUQx3bPP4vjA68ETbPLNz9V2pk9tO7pRQ=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "8cd5ce828d5d1d16feff37340171a98fc3bf6526",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-25.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 00000000..15e6fae4
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,43 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs =
+    { nixpkgs, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+        };
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          packages = with pkgs; [
+            git
+
+            gnumake
+            foreman
+
+            nil
+            nixfmt-rfc-style
+
+            nodePackages.prettier
+            nodePackages.yaml-language-server
+            nodePackages.vscode-langservers-extracted
+            markdownlint-cli
+            nodePackages.markdown-link-check
+            marksman
+            taplo
+
+            go
+            gopls
+            go-tools
+            gofumpt
+          ];
+        };
+      }
+    );
+}