Installation

DevMark is written in Rust and runs on macOS, Windows and Linux. Prebuilt versions for macOS and Linux are attached to the GitHub releases; until a release lists your platform, build it from the repository.

Download

File	For
DevMark-<version>-macos-universal.zip	macOS 13 or newer, Apple silicon and Intel
devmark-<version>-linux-x86_64.tar.gz	Linux on x86_64

On macOS, unpack the zip and move DevMark.app to the Applications folder. The app is not notarized by Apple, so the first start needs right-click → Open. On Linux, unpack the archive and start devmark; it needs the usual desktop libraries (Vulkan, Wayland or X11, fontconfig).

Verify a download

Official binaries come only from the GitHub releases of casoon/devmark. They are built there by the release workflow from the tagged commit, never on a developer machine. Each file has a .sha256 next to it, the release a combined SHA256SUMS, and every download a signed build provenance attestation:

shasum -a 256 -c DevMark-<version>-macos-universal.zip.sha256
gh attestation verify DevMark-<version>-macos-universal.zip --repo casoon/devmark

The second command needs the GitHub CLI. It confirms which workflow run and which commit produced the file.

Each download contains THIRD-PARTY-LICENSES.txt with the licences of the third-party software and fonts it includes.

Requirements

• A current stable Rust toolchain (the project uses edition 2024), most easily installed with rustup.
• Git, to fetch the repository.

Build from source

git clone https://github.com/casoon/devmark.git
cd devmark
cargo run -p devmark -- ~/projects/my-text

The first build takes a few minutes. The argument is a folder or a file; see First steps.

macOS: install as an app

scripts/bundle-macos.sh --install

The script builds a release version, packages it as DevMark.app and copies it to /Applications. Without --install the app stays in target/release/bundle/. The app registers itself as an editor for Markdown files.