Add octofriend configuration to flake

- Embed octofriend.json5 config directly in flake.nix postInstall
- Set OCTOFRIEND_CONFIG_DIR to point to included config
- Add comprehensive README with setup and configuration instructions
- Keep API keys out of repo for security (users must add keys.json5 locally)

appflakes/octofriend/flake.nix

@@ -37,12 +37,43 @@
           postInstall = ''
             if [ -x "$out/bin/octofriend" ]; then
               wrapProgram "$out/bin/octofriend" \
-                --prefix PATH : ${lib.makeBinPath [ pkgs.git pkgs.openssh ]}
+                --prefix PATH : ${lib.makeBinPath [ pkgs.git pkgs.openssh ]} \
+                --set OCTOFRIEND_CONFIG_DIR "$out/share/octofriend/config"
             fi
-            # Provide the short alias if upstream didn’t already.
+            # Provide the short alias if upstream didn't already.
             if [ -x "$out/bin/octofriend" ] && [ ! -e "$out/bin/octo" ]; then
               ln -s "$out/bin/octofriend" "$out/bin/octo"
             fi
+            # Install the config file
+            mkdir -p "$out/share/octofriend/config"
+            cat << 'EOF' > "$out/share/octofriend/config/octofriend.json5"
+{
+  yourName: 'Jules',
+  models: [
+    {
+      model: 'hf:zai-org/GLM-4.6',
+      nickname: 'GLM-4.6 (Synthetic)',
+      context: 131072,
+      baseUrl: 'https://api.synthetic.new/v1',
+    },
+    {
+      model: 'hf:MiniMaxAI/MiniMax-M2',
+      nickname: 'MiniMax M2 (Synthetic)',
+      context: 98304,
+      baseUrl: 'https://api.synthetic.new/v1',
+    },
+  ],
+  defaultApiKeyOverrides: {},
+  diffApply: {
+    baseUrl: 'https://api.synthetic.new/v1',
+    model: 'hf:syntheticlab/diff-apply',
+  },
+  fixJson: {
+    baseUrl: 'https://api.synthetic.new/v1',
+    model: 'hf:syntheticlab/fix-json',
+  },
+}
+EOF
           '';
 
           meta = with lib; {
@@ -58,4 +89,4 @@
           exePath = "/bin/octofriend";
         };
       });
-}
+}