dev: direnv + flake for nix-shell

Change-Id: Ic74d9f5e0529d550581d8ff96bdace74cb39b76f
diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..b62b6ac
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,5 @@
+# shellcheck shell=bash
+
+use flake
+
+export KUBECONFIG=$(pwd)/priv/kubeconfig-hetzner-new.yaml
diff --git a/.gitignore b/.gitignore
index eda363b..a12118e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@
 .hugo_build.lock
 dist
 node_modules
+.direnv
\ No newline at end of file
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..9dd84ed
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,98 @@
+{
+  "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": 1784555310,
+        "narHash": "sha256-/FCliTPgiuV1owejZFNx3Ch9irdvkOfOFl+HHZ+DrtM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "421eebfd0ec7bccd4abe826ce62d7e6e83129493",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-fluxcd": {
+      "locked": {
+        "lastModified": 1779643027,
+        "narHash": "sha256-uvtKlUxt2LSkoNGm2UWJ0NtvKbEKjNTfRXuwEre8zNA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e1ea2e5ee3decc21eaf91862bd3de37701e57595",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e1ea2e5ee3decc21eaf91862bd3de37701e57595",
+        "type": "github"
+      }
+    },
+    "nixpkgs-kubectl": {
+      "locked": {
+        "lastModified": 1750386251,
+        "narHash": "sha256-1ovgdmuDYVo5OUC5NzdF+V4zx2uT8RtsgZahxidBTyw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "076e8c6678d8c54204abcb4b1b14c366835a58bb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "076e8c6678d8c54204abcb4b1b14c366835a58bb",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-fluxcd": "nixpkgs-fluxcd",
+        "nixpkgs-kubectl": "nixpkgs-kubectl",
+        "systems": "systems"
+      }
+    },
+    "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 0000000..dcd2fbf
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,42 @@
+{
+  description = "dodo dev shell";
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    systems.url = "github:nix-systems/default";
+    flake-utils = {
+      url = "github:numtide/flake-utils";
+      inputs.systems.follows = "systems";
+    };
+    # v1.33.1
+    nixpkgs-kubectl.url = "github:NixOS/nixpkgs/076e8c6678d8c54204abcb4b1b14c366835a58bb";
+    # v2.8.8
+    nixpkgs-fluxcd.url = "github:NixOS/nixpkgs/e1ea2e5ee3decc21eaf91862bd3de37701e57595";
+  };
+
+  outputs =
+    { nixpkgs, flake-utils, nixpkgs-kubectl, nixpkgs-fluxcd, ... }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+        pkgs-kubectl = import nixpkgs-kubectl { inherit system; };
+        pkgs-fluxcd = import nixpkgs-fluxcd { inherit system; };
+        kubectl = pkgs-kubectl.kubectl;
+        fluxcd = pkgs-fluxcd.fluxcd;
+        alias-kubectl = pkgs.writeShellScriptBin "k" ''
+          exec ${kubectl}/bin/kubectl "$@"
+        '';
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          packages = [
+            pkgs.bashInteractive
+            kubectl
+            fluxcd
+            pkgs.k9s
+            alias-kubectl
+          ];
+        };
+      }
+    );
+}