參考這裡的安裝說明：
https://ubuntu.pkgs.org/20.04/ubuntu-universe-arm64/sphinxsearch_2.2.11-2ubuntu2_arm64.deb.html
執行以下命令：
$ sudo apt-get update
$ sudo apt-get install sphinxsearch
$ searchd
Sphinx 2.2.11-id64-release (95ae9a6)
Copyright (c) 2001-2016, Andrew Aksyonoff
Copyright (c) 2008-2016, Sphinx Technologies Inc (http://sphinxsearch.com)