Add flake for zephyr dev

.gitignore

@@ -2,3 +2,4 @@
 *.py[co]
 __pycache__/
 *~
+.direnv/

flake.lock

@@ -0,0 +1,85 @@
+{
+  "nodes": {
+    "artemist-packages": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "utils": [
+          "utils"
+        ]
+      },
+      "locked": {
+        "lastModified": 1699827895,
+        "narHash": "sha256-Fzjd9h3TDPXORNl6pek+e79eFjbmSaU4Hi/MUpjSRz4=",
+        "ref": "refs/heads/canon",
+        "rev": "763d83f15705ab6c6b033e445f96d40bc4f10eb4",
+        "revCount": 9,
+        "type": "git",
+        "url": "https://git.mildlyfunctional.gay/artemist/packages.git"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://git.mildlyfunctional.gay/artemist/packages.git"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1699725108,
+        "narHash": "sha256-NTiPW4jRC+9puakU4Vi8WpFEirhp92kTOSThuZke+FA=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "911ad1e67f458b6bcf0278fa85e33bb9924fed7e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "artemist-packages": "artemist-packages",
+        "nixpkgs": "nixpkgs",
+        "utils": "utils"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,32 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    utils.url = "github:numtide/flake-utils";
+    artemist-packages = {
+      url = "git+https://git.mildlyfunctional.gay/artemist/packages.git";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.utils.follows = "utils";
+    };
+  };
+  outputs = { self, nixpkgs, utils, artemist-packages }:
+    utils.lib.eachDefaultSystem (system:
+      let pkgs = import nixpkgs { inherit system; };
+      in {
+        devShells.zephyr =
+          artemist-packages.devShells.${system}.zephyr.override {
+            toolchains =
+              with artemist-packages.packages.${system}.zephyr.toolchains; [
+                arm-zephyr-eabi
+                riscv64-zephyr-elf
+              ];
+            zephyrSrc = pkgs.fetchFromGitHub {
+              owner = "zephyrproject-rtos";
+              repo = "zephyr";
+              rev = "v3.5.0";
+              hash = "sha256-72QFsKOWkF6BiP4XgZAXXSBcN4t6yvhAeXCpgCYrhe8=";
+            };
+          };
+        formatter = pkgs.nixfmt;
+      });
+
+}

zephyr/.envrc

@@ -0,0 +1 @@
+use flake ..#zephyr