added flake for development

.gitignore

@@ -1,3 +1,4 @@
 /target
 dist
 /docs
+res/test/docs/slides/revealjs

flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1760934318,
+        "narHash": "sha256-/oUYsC0lUCBory65VK+UHqCCsCspbL1Vgfcf1KUYqVw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "87848bf0cc4f87717fc813a4575f07330c3e743c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "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
+}

flake.nix

@@ -0,0 +1,35 @@
+{
+  description = "Asist Development Flake";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    systems.url = "github:nix-systems/default";
+  };
+
+  outputs =
+    { nixpkgs, systems, ... }:
+    let
+      eachSystem = f: nixpkgs.lib.genAttrs (import systems) (system: f nixpkgs.legacyPackages.${system});
+    in
+    {
+      devShells = eachSystem (pkgs: {
+        default = pkgs.mkShell {
+          name = "asist";
+          buildInputs = with pkgs; [
+            gcc
+            openssl.dev
+            pkg-config
+            libiconv
+            rustc
+            cargo
+            (ruby.withPackages (
+              p: with p; [
+                asciidoctor
+                bundler
+              ]
+            ))
+          ];
+        };
+      });
+    };
+}