Add custom instructions for AI

home/home.nix

@@ -1,5 +1,11 @@
 { pkgs, spicetify-nix, ... }:
  
+let
+  localFastModel = "qwen2.5-coder-num_ctx";
+  localReasoningModel = "deepseek-r1-num_ctx";
+  remoteFastModel = "deepseek/deepseek-chat-v3-0324:free"; # "qwen/qwen-2.5-coder-32b-instruct:free";
+  remoteReasoningModel = "deepseek/deepseek-r1-0528:free";
+in
 {
   home = {
     stateVersion = "23.11";
@@ -44,6 +50,14 @@
           external.enable = true;
         };
       };
+      shellAliases = {
+        aichat_reasoning_remote = "aichat --model openrouter:${remoteReasoningModel}";
+        aichat_reasoning_local = "aichat --model ollama:${localReasoningModel}";
+        aichat_fast_remote = "aichat --model openrouter:${remoteFastModel}";
+        aichat_fast_local = "aichat --model ollama:${localFastModel}";
+        codex_remote = "codex --provider openrouter --model ${remoteFastModel}";
+        codex_local = "codex --provider ollama --model ${localFastModel}";
+      };
     };
     starship = {
       enable = true;
@@ -68,8 +82,44 @@
     };
     codex = {
       enable = true;
+      custom-instructions = ''
+## 10. Applying Patch Files with patch
+
+When the built-in `apply_patch` tool or `git apply` fails to apply a diff/patch file (especially if the file being patched contains special characters that might confuse simpler patch tools), the standard `patch` utility can be a more robust alternative.
+
+- **Patch File Format**: Ensure your patch file is in a standard unified diff format. Typically, these patches are generated with `git diff > my_feature.patch` or manually crafted. If the patch refers to files with `a/` and `b/` prefixes (e.g., `--- a/file.txt`, `+++ b/file.txt`), you'll use the `-p1` option.
+
+- **Creating the Patch File**: You can create a patch file using shell redirection, for example:
+
+```bash`
+cat <<'EOF' > fix_descriptive_name.patch
+--- a/path/to/your/file.ext
++++ b/path/to/your/file.ext
+@@ -line_num,num_lines +line_num,num_lines @@ context_or_change
+-old_line_content
++new_line_content
+EOF
+```
+
+*Important*: Ensure the `EOF` marker is on its own line with no trailing spaces.
+
+- **Applying the Patch**: Use the `patch` command via the `shell` tool. The `-p1` option strips the leading component from file paths in the patch file (`a/`, `b/`).
+
+```
+# Example: Apply a patch file
+default_api.shell(command=["sh", "-c", "patch -p1 < fix_descriptive_name.patch"])
+```
+
+- **Verification**: After applying, always verify that the target file has been changed as expected (e.g., using `cat` or `git diff`).
+
+- **Cleanup**: Remove the patch file if it's no longer needed:
+
+```
+default_api.shell(command=["rm", "fix_descriptive_name.patch"])
+```
+'';
       settings = {
-        model = "qwen2.5-coder";
+        model = "${localFastModel}";
         provider = "ollama";
         providers = {
           ollama = {
@@ -88,7 +138,7 @@
     aichat = {
       enable = true;
       settings = {
-        model = "ollama:qwen2.5-coder:latest";
+        model = "ollama:${localFastModel}";
         clients = [
           {
             type = "openai-compatible";
@@ -96,12 +146,12 @@
             api_base = "http://localhost:11434/v1";
             models = [
               {
-                name = "qwen2.5-coder:latest";
+                name = "${localFastModel}";
                 supports_function_calling = true;
                 supports_vision = true;
               }
               {
-                name = "deepseek-r1:latest";
+                name = "${localReasoningModel}";
                 supports_function_calling = true;
                 supports_vision = true;
               }
@@ -113,12 +163,12 @@
             api_base = "https://openrouter.ai/api/v1";
             models = [
               {
-                name = "qwen/qwen-2.5-coder-32b-instruct:free";
+                name = "${remoteFastModel}";
                 supports_function_calling = true;
                 supports_vision = true;
               }
               {
-                name = "deepseek/deepseek-r1-0528:free";
+                name = "${remoteReasoningModel}";
                 supports_function_calling = true;
                 supports_vision = true;
               }