致謝

Optically 使用的軟體與圖稿

Sparkle

Optically 使用 Sparkle 檢查與安裝更新。 Sparkle 以 MIT 授權條款散布，依該授權要求，全文轉載於下。

Copyright (c) 2006-2013 Andy Matuschak.
Copyright (c) 2009-2013 Elgato Systems GmbH.
Copyright (c) 2011-2014 Kornel Lesinski.
Copyright (c) 2015-2017 Mayur Pawashe.
Copyright (c) 2014 C.W. Betts.
Copyright (c) 2014 Petroules Corporation.
Copyright (c) 2014 Big Nerd Ranch.
All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

EXTERNAL LICENSES

bspatch.c and bsdiff.c, from bsdiff 4.3 <http://www.daemonology.net/bsdiff/>:
Copyright (c) 2003-2005 Colin Percival.

sais.c and sais.h, from sais-lite (2010/08/07) <https://sites.google.com/site/yuta256/sais>:
Copyright (c) 2008-2010 Yuta Mori.

圖稿

Optically 標誌與 App 圖像是 Flash Media Solutions, Inc. 的原創作品，以 Adobe Illustrator 繪製。 它的每一種呈現 — App 圖像、選單列符號、這個頁面頂端的標誌 — 都由同一個原始檔產生。

首頁上的照片是一台放在書桌上的 Sonos Ray。 Sonos 硬體在此僅以一般編輯報導的脈絡出現；本網站與 App 中的任何地方都未使用 Sonos 的圖稿、攝影或文件。