BTA Labs

Explore our products

Two tools for building with AI on your own keys: one in your browser, one on your desktop.

Explore products

Two tools, built on the AI you already own.

A website builder in your browser and a desktop home for your coding agents. Both run on your keys.

NixSiteAI website and app builder · Browser · Free

Describe it. An agent builds it.

Pages, styles and a working backend, written file by file while you watch the preview.

Your own keyPay the provider directly, no markup.
Six templatesStart from a finished site in one click.
Backend includedAPI routes that deploy to Cloudflare Pages.

Start building Learn more

The NixSite builder: a chat on the left, a live website preview on the right

model providers: 9
starter templates: 6
platform fee: $0

Nix AgentsAgent development environment · Windows · Beta 0.1.10

Every coding agent, one window.

Run Claude Code, Codex and Gemini CLI side by side, each in its own worktree and real terminal.

Worktree per agentAgents never step on your checkout.
Real terminalsThe CLIs run as themselves, locally.
Your subscriptionsNothing is proxied through us.

Download free Learn more

Nix Agents: choose a CLI agent such as Claude Code or Codex, or connect a model provider

agent CLIs: 25+
panes in parallel: 16
plan, no card: Free

Works with the AI you already use

Claude CodeCodexGemini CLIGitHub CopilotCursoropencodeClineMistralDeepSeekOpenRouterOllamaPerplexityConductorWarpWindows TerminalGhosttyWezTermOrcaBridgeMindv0LovableBolt.new

NixSite templates

Start from a finished site.

Six finished sites. Open one, then tell the AI what to change.

Start building.

Building software, not just sites? Nix Agents runs Claude Code, Codex and Gemini CLI side by side on Windows.