crun vs Finch

crun is a free, self-hosted OCI container runtime for Linux, written in C. It conforms to the OCI Container Runtime specifications and provides CLI operations for creating, running, executing commands in, listing, pausing, resuming, updating, checkpointing and restoring containers. It can generate a configuration for unprivileged use and creates a user namespace when run by a non-root user. The project documents integration with Podman, an Ansible role for installing a statically linked binary and a Lua binding. Build instructions cover Fedora, RHEL/CentOS Stream 9 and 10, Ubuntu, Alpine and openSUSE Tumbleweed; release binaries are listed for Linux amd64 and arm64, including variants without systemd. Official release artifacts are signed, with GPG verification commands provided. The project reports a benchmark of 100 sequential `/bin/true` containers completing in 1.69 seconds with crun versus 3.34 seconds with runc on the author's machine. The manual marks cgroup v1 support as deprecated. Regular patch releases target the latest version; fixes for earlier versions are best effort and not guaranteed.

Finch is a free, open-source tool for local container development, available on macOS, Windows and Linux. It provides a native client for upstream container projects and brings together Lima, nerdctl, containerd and BuildKit. Its command-line interface supports Docker Compose-compatible commands, so a Compose command can be translated to Finch’s compose form. Finch also covers a majority of Visual Studio Code Dev Container use cases. Developers can sign and verify container images with cosign using self-managed keys. On macOS, registry credentials use the encrypted Keychain by default. Installation requirements vary: Windows requires WSL 2 and administrative privileges; macOS also requires administrative privileges and recommends at least 2 vCPU and 4 GB of memory; the Linux guide lists kernel v4.x or newer. Finch is intended as a developer tool, not for production use, especially multi-tenant workloads. Its macOS and Windows virtual machine does not provide a security boundary. Finch does not support Windows wincred or Linux secretservice system stores. Issues can be reported through its GitHub repository; AWS customers with Developer-tier or higher support can open technical support tickets.