Installation

Ktesio is a Rust CLI. It works on macOS, Linux, and Windows with no runtime dependencies beyond the operating system.

Prerequisites

None for the installed binary. Rust is only required when installing through Cargo or from source.

Install with the installer

On macOS or Linux:

curl -fsSL https://cli.ktesio.dev/install.sh | sh

On Windows with PowerShell:

irm https://cli.ktesio.dev/install.ps1 | iex

The installer preserves an existing Ktesio install channel when it can:

Homebrew installs are updated with brew upgrade ktesio/tap/ktesio. If you installed from the older imagdy/tap location, migrate once with brew untap imagdy/tap && brew install ktesio/tap/ktesio.
Cargo installs are updated with cargo install ktesio --force.
Manual binary installs are replaced in their existing writable directory.

For new macOS and Linux installs, the installer prefers Homebrew, then Cargo, then a prebuilt GitHub Release binary. For new Windows installs, it prefers Cargo, then a prebuilt GitHub Release binary.

Installer overrides:

KTESIO_INSTALL_METHOD=binary curl -fsSL https://cli.ktesio.dev/install.sh | sh
KTESIO_INSTALL_DIR="$HOME/.local/bin" curl -fsSL https://cli.ktesio.dev/install.sh | sh
KTESIO_INSTALL_DRY_RUN=1 curl -fsSL https://cli.ktesio.dev/install.sh | sh

KTESIO_INSTALL_METHOD accepts auto, brew, cargo, or binary on macOS and Linux. Windows accepts auto, cargo, or binary.

The installer does not install Homebrew, Rust, or Cargo, and it writes no shell profile entries. Git is not a runtime dependency. If it installs a binary into a directory that is not on PATH, it prints the directory to add.

Install from source

git clone https://github.com/Ktesio/ktesio.git
cd ktesio
cargo install --path .

Verify:

kt --version
kt --help

Install from crates.io

cargo install ktesio

The crates.io package is named ktesio; it installs the kt binary.

Install from a release

Download the archive for your platform from GitHub Releases, then unpack it and place the kt binary on your PATH.

Release archives use this naming pattern:

ktesio-<tag>-<target>.tar.gz
ktesio-<tag>-<target>.zip

Each release also includes .sha256 files and an aggregate checksum file.

Install with Homebrew

After a release is published to the Homebrew tap:

brew install ktesio/tap/ktesio

The formula installs the prebuilt macOS or Linux release archive for your platform.

Updating Ktesio

Ktesio checks GitHub Releases through an hourly cache when a subcommand runs. If a newer release is available, it prints a small stderr notice that asks you to run:

kt self-update

kt self-update preserves the current install channel automatically. Homebrew installs upgrade with Homebrew, Cargo installs upgrade with Cargo, and manual release installs download the latest GitHub Release archive, verify its .sha256 checksum, and replace the current binary. A running agent keeps executing the binary it was started with; restart it to pick up the new version.

Set KTESIO_NO_UPDATE_CHECK=1 to skip automatic update checks.

Uninstall

How to remove Ktesio depends on the install channel:

brew uninstall ktesio/tap/ktesio   # Homebrew installs
cargo uninstall ktesio             # Cargo installs

For a manual release install, delete the kt binary from the directory it was installed into.

Uninstalling removes the binary only. Ktesio's own state is untouched: the state directory (override KTESIO_STATE_DIR, otherwise the platform data dir) holds state.db, instance Agent Homes, and any filesystem Memory Backing contents, and <state dir>/secrets.toml holds any stored secrets. Delete the state directory yourself if you want a fully clean removal — otherwise it is reused if you reinstall.

Platform notes

macOS may require Xcode Command Line Tools when building from source.
Windows users building from source need the MSVC build tools (see Rust's Windows setup).
Linux users may need standard build tools for Rust crates.