MicroOS transactional-update versus Tumbleweed snapper for repeatable development

A repeatable development environment on openSUSE is needed where system state can be reproduced across machines and rolled back when experiments change build behavior.

openSUSE MicroOS provides an immutable root filesystem with transactional-update, staging package changes offline and applying them atomically on reboot. openSUSE Tumbleweed provides a mutable rolling release on btrfs with snapper snapshots, allowing in-place zypper updates and on-demand rollback to a previous snapshot. Both support repeatability through versioned state, but differ in when changes become active and how developer tools can be installed.

MicroOS favors layered packages or image updates, which limits ad-hoc mutable installs often used for rapid iteration. Tumbleweed allows immediate mutable changes and direct tool installation, increasing flexibility but requiring disciplined snapshot management to maintain repeatability.

For a team constraint that requires both strong consistency and fast developer iteration, which approach preserves repeatability when tools must be installed outside the base image? How does the timing of change activation affect reproducibility of build environments across members? Is there a documented way to combine layered packages with snapshot discipline without losing atomic guarantees?