Yeesh

brings interactive xterm.js terminal components to Phoenix LiveView, backed by secure process isolation via Dune sandboxing.

The Pitch

Embedding terminal interfaces into web applications usually requires managing complex WebSockets, term size handshakes, state synchronization, and dangerous shell execution risks.

Yeesh delivers a ready-to-use Phoenix LiveView component powered by xterm.js . It streams bi-directional PTY data directly through LiveView sockets while delegating execution into isolated, resource-constrained Dune sandbox environments—preventing unauthorized host system access.

Why Yeesh?

Native LiveView Component

Embed full-featured web terminals into Phoenix LiveView layouts with standard assigns and event hooks.

Dune Sandbox Isolation

Executes terminal commands inside isolated containerized environments (Dune), enforcing memory and CPU limits.

Bi-Directional PTY Streaming

Real-time terminal rendering with xterm.js, auto-resizing, color support, and input handling.

Custom Themes & Keymaps

Easily theme the terminal interface and bind custom key shortcuts.

The Tech

Who It's For

• Web Application Engineers building web-based SSH clients, cloud consoles, or admin dashboards.
• EdTech & Sandbox Platforms creating interactive coding playgrounds and shell tutorials.
• DevOps Tools Authors rendering remote process outputs safely in Phoenix web interfaces.

Bottom Line

Embed secure, interactive web terminals directly into Phoenix LiveView applications with Yeesh.