<div id="comment:0"></div> This implements #24024 and #23733 for tachyon, and also cleans up its `spkg-install` in general. Depends on #25039 Depends on #23733 Component: **build** Keywords: **destdir tachyon** Author: **Erik Bray** Branch/Commit: **[`f7ef4fe`](https://github.com/sagemath/sagetrac-mirror/commit/f7ef4fede4d0fb2b8778f8958e06aebe40d9e6ec)** Reviewer: **Julian Rüth** _Issue created by migration from https://trac.sagemath.org/ticket/25048_