Disque vs Sandglass: What are the differences?

Disque: In-memory, distributed job queue. Disque is an ongoing experiment to build a distributed, in-memory, message broker. Its goal is to capture the essence of the "Redis as a jobs queue" use case, which is usually implemented using blocking list operations, and move it into an ad-hoc, self-contained, scalable, and fault tolerant design, with simple to understand properties and guarantees, but still resembling Redis in terms of simplicity, performance, and implementation as a C non-blocking networked server; Sandglass: Distributed, scalable, persistent time-sorted message queue. A distributed, horizontally scalable, persistent, time ordered message queue. Developed to support asynchronous tasks and message scheduling which makes it suitable for usage as a task queue.

Disque and Sandglass belong to "Message Queue" category of the tech stack.

Disque and Sandglass are both open source tools. It seems that Disque with 7.37K GitHub stars and 516 forks on GitHub has more adoption than Sandglass with 1.52K GitHub stars and 40 GitHub forks.