feat(flake): add flake.nix and flake.lock for Reticulum-MeshChatX development environment setup

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": 1767116409,
+        "narHash": "sha256-5vKw92l1GyTnjoLzEagJy5V5mDFck72LiQWZSOnSicw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "cad22e7d996aea55ecab064e84834289143e44a0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "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
+}

flake.nix

@@ -0,0 +1,109 @@
+{
+  description = "Reticulum-MeshChatX development environment";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          config.allowUnfree = true;
+        };
+
+        python = pkgs.python312;
+        node = pkgs.nodejs_22;
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            # Core
+            git
+            curl
+            go-task
+            pkg-config
+            libffi
+            openssl
+
+            # Audio (for LXST/Telephony)
+            libopus
+            portaudio
+
+            # Backend
+            python
+            poetry
+            ruff
+
+            # Frontend
+            node
+            pnpm
+
+            # Electron & Linux Packaging
+            electron
+            fakeroot
+            rpm
+            dpkg
+            wine
+            mono
+
+            # Android Development
+            gradle
+            openjdk17
+
+            # Flatpak Packaging
+            flatpak-builder
+
+            # Containerization
+            docker
+            docker-compose
+          ];
+
+          shellHook = ''
+            echo "Reticulum-MeshChatX development environment"
+            echo "Python version: $(${python}/bin/python --version)"
+            echo "Node version:   $(${node}/bin/node --version)"
+            echo "Task version:   $(task --version 2>/dev/null || echo 'not available')"
+            echo "Poetry version: $(poetry --version 2>/dev/null || echo 'not available')"
+            echo "PNPM version:   $(pnpm --version 2>/dev/null || echo 'not available')"
+            
+            # Set up development environment variables
+            export LD_LIBRARY_PATH="${pkgs.libopus}/lib:${pkgs.portaudio}/lib:$LD_LIBRARY_PATH"
+          '';
+        };
+
+        # Simple package definition for the backend
+        packages.default = pkgs.python312Packages.buildPythonPackage {
+          pname = "reticulum-meshchatx";
+          version = "3.3.2";
+          src = ./.;
+          format = "pyproject";
+
+          nativeBuildInputs = with pkgs; [
+            python312Packages.setuptools
+            python312Packages.wheel
+          ];
+
+          propagatedBuildInputs = with pkgs.python312Packages; [
+            aiohttp
+            psutil
+            websockets
+            bcrypt
+            aiohttp-session
+            cryptography
+            requests
+            ply
+            # Note: rns, lxmf, lxst are handled via poetry or manual vendoring
+          ];
+
+          buildInputs = [
+            pkgs.libopus
+            pkgs.portaudio
+          ];
+
+          doCheck = false;
+        };
+      });
+}