docs: add Windows setup instructions to README

README.md

@@ -70,7 +70,46 @@ cargo build --release -p rusty-claude-cli
 cp target/release/hackcode ~/.local/bin/
 ```
 
-Works on **macOS** (Apple Silicon & Intel) and **Linux** (x64 & ARM64). Runs natively on **Kali Linux**.
+Works on **macOS** (Apple Silicon & Intel), **Linux** (x64 & ARM64), and **Windows** (x64). Runs natively on **Kali Linux**.
+
+### Windows (PowerShell)
+
+Build from source:
+
+```powershell
+git clone https://github.com/itwizardo/hackcode.git
+cd hackcode\rust
+cargo build --release -p rusty-claude-cli
+```
+
+Add to your PowerShell profile (`$PROFILE`):
+
+```powershell
+$env:HOME = $env:USERPROFILE
+$env:PATH += ";C:\path\to\hackcode\rust\target\release"
+```
+
+**Using with Anthropic API** (instead of local Ollama):
+
+The default model requires Ollama. To use the Anthropic API, set your API key and add a wrapper function to your profile:
+
+```powershell
+$env:ANTHROPIC_API_KEY = "sk-ant-..."  # or set via system env vars
+function hackcode { hackcode.exe --model sonnet @args }
+```
+
+Verify the installation:
+
+```powershell
+hackcode doctor    # Health check
+hackcode status    # Workspace info
+hackcode --help    # Full command list
+```
+
+**Windows notes:**
+- Sandbox isolation (Linux `unshare`) is unavailable; filesystem mode `workspace-only` remains active
+- Some test suites use Unix-only APIs and will not compile on Windows — this does not affect the binary
+- The `HOME` environment variable must be set for credential discovery to work
 
 ---