> For the complete documentation index, see [llms.txt](https://evo-5.gitbook.io/evo/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://evo-5.gitbook.io/evo/getting-started/requirements.md).

# Requirements

## Runtime

* **Node.js 22.19 or newer** — evo uses the built-in `node:sqlite` module for local storage

## Host Requirements

Depending on which host you use, you'll need:

### DeepSeek Harness

* DeepSeek Harness `0.1.x`
* A configured Harness LLM provider and model for reflection and consolidation

The Cordis plugin and core library work without Harness; the Harness-specific pieces are optional peer dependencies.

### Claude Code

* Claude Code CLI or desktop app
* No additional API keys required — evo uses the CLI's own credentials for reflection

### Codex

* Codex CLI
* No additional API keys required — evo uses `codex exec` with your existing configuration

## Package Manager

The project uses pnpm, but evo can be installed with any package manager:

```bash
pnpm add @tiz36/evo
# or
npm install @tiz36/evo
# or
yarn add @tiz36/evo
```

## Platform Support

evo runs on macOS, Linux, and Windows. The SQLite database location follows platform conventions:

| Platform | Default Path                                     |
| -------- | ------------------------------------------------ |
| macOS    | `~/Library/Application Support/evo/memory.db`    |
| Linux    | `${XDG_DATA_HOME:-~/.local/share}/evo/memory.db` |
| Windows  | `%APPDATA%\evo\memory.db`                        |


---

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