Adds flake.nix for devShell and package

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -1 +1,4 @@
-*.epub
+*.epub
+.direnv
+result
+target/**

Justfile

@@ -3,6 +3,11 @@ gen-bindings:
   cargo test -p bene-epub export_bindings
   cp -r crates/bene-epub/bindings ../js/packages/bene-types/src/
 
+[working-directory: 'js']
+build: gen-bindings
+  depot -p bene-reader build
+  depot -p bene-desktop build
+
 [working-directory: 'rs']
 build-native: gen-bindings
   cargo tauri build

flake.nix

@@ -0,0 +1,69 @@
+# Bene - An EPUB reading system
+#
+# Usage:
+#   nix build              - Build using pre-built binary from GitHub releases (fast)
+#   nix build .#from-source - Build from source (slow, for testing patches)
+#   nix develop            - Enter development shell with Rust, Node, pnpm, depot
+#   nix run -- /path/to.epub - Run the reader directly
+#
+# The default package downloads the .deb from GitHub releases and patches it
+# for NixOS using autoPatchelfHook. Only x86_64-linux is supported for the
+# binary package.
+#
+# To update to a new release:
+#   1. Update version in nix/bene-bin.nix
+#   2. Run: nix-prefetch-url https://github.com/nota-lang/bene/releases/download/v<VERSION>/Bene.Reader_<VERSION>_amd64.deb
+#   3. Convert hash: nix hash convert --hash-algo sha256 <hash>
+#   4. Update hash in nix/bene-bin.nix
+#
+{
+  description = "Bene - An EPUB reading system with Rust backend and JavaScript frontend";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    depot = {
+      url = "github:cognitive-engineering-lab/depot";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, rust-overlay, depot }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
+
+        rustToolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
+        depotPkg = depot.packages.${system}.default;
+
+        src = pkgs.lib.fileset.toSource {
+          root = ./.;
+          fileset = pkgs.lib.fileset.gitTracked ./.;
+        };
+      in
+      {
+        # Default package: Pre-built binary (fast, recommended)
+        packages.default = pkgs.callPackage ./nix/bene-bin.nix { };
+
+        # From-source build (for development/testing patches)
+        packages.from-source = pkgs.callPackage ./nix/bene-src.nix {
+          inherit rustToolchain depotPkg src;
+          pnpm = pkgs.pnpm_9;
+        };
+
+        # Development shell with all tools
+        devShells.default = pkgs.callPackage ./nix/devshell.nix {
+          inherit rustToolchain depotPkg;
+        };
+
+        # Formatter for `nix fmt`
+        formatter = pkgs.nixpkgs-fmt;
+      });
+}

nix/bene-bin.nix

@@ -0,0 +1,87 @@
+# Pre-built binary package for Bene
+# Downloads the .deb from GitHub releases and patches it for NixOS
+{ lib
+, stdenv
+, fetchurl
+, dpkg
+, autoPatchelfHook
+, wrapGAppsHook3
+, gtk3
+, webkitgtk_4_1
+, libsoup_3
+, glib
+, glib-networking
+, openssl
+, libayatana-appindicator
+}:
+
+stdenv.mkDerivation rec {
+  pname = "bene";
+  version = "0.1.3";
+
+  src = fetchurl {
+    url = "https://github.com/nota-lang/bene/releases/download/v${version}/Bene.Reader_${version}_amd64.deb";
+    hash = "sha256-zO4WlKmDkZc/bIPB+3mcTcj1xfUbrVo4sHGNvaoGjrI=";
+  };
+
+  unpackCmd = "${dpkg}/bin/dpkg-deb -x $curSrc .";
+  sourceRoot = ".";
+
+  nativeBuildInputs = [
+    autoPatchelfHook
+    wrapGAppsHook3
+    dpkg
+  ];
+
+  buildInputs = [
+    gtk3
+    webkitgtk_4_1
+    libsoup_3
+    glib
+    glib-networking
+    openssl
+    libayatana-appindicator
+  ];
+
+  dontConfigure = true;
+  dontBuild = true;
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/bin $out/lib $out/share
+
+    # Install the main binary (upstream names it bene-app)
+    install -Dm755 usr/bin/bene-app $out/bin/bene
+
+    # Install bundled resources (bene-reader assets)
+    if [ -d "usr/lib/Bene Reader" ]; then
+      cp -r "usr/lib/Bene Reader" "$out/lib/"
+    fi
+
+    # Install desktop file
+    if [ -d usr/share/applications ]; then
+      cp -r usr/share/applications $out/share/
+    fi
+
+    # Install icons
+    if [ -d usr/share/icons ]; then
+      cp -r usr/share/icons $out/share/
+    fi
+
+    runHook postInstall
+  '';
+
+  postFixup = ''
+    wrapProgram $out/bin/bene \
+      --prefix GIO_EXTRA_MODULES : "${glib-networking}/lib/gio/modules"
+  '';
+
+  meta = with lib; {
+    description = "An EPUB reading system";
+    homepage = "https://github.com/nota-lang/bene";
+    license = with licenses; [ mit asl20 ];
+    platforms = [ "x86_64-linux" ];
+    mainProgram = "bene";
+  };
+}