NewPipe does not use any Google framework libraries, nor the YouTube API. Websites are only parsed to fetch required info, so this app can be used on devices without Google services installed. Also, you don't need a YouTube account to use NewPipe, which is copylefted libre software.
Your item did not comply with the following section of our policy: An extension should have a single purpose that is clear to users. Do not create an extension that requires users to accept bundles of unrelated functionality, such as an email notifier and a news headline aggregator. If two pieces of functionality are clearly separate, they should be put into two different extensions, and users should have the ability to install and uninstall them separately. For example, an extension that provides a broad array of functionalities on the New Tab Page/ Start-up Page but also changes the default search are better delivered as separate extensions, so that users can select the services they want. For more information on the new Chrome extensions quality policy, please refer to the FAQ: https://developer.chrome.com/extensions/single_purpose
3. Open the Microsoft Store, install Ubuntu. (This is basically what WSL was created to run.) I installed "Ubuntu 18.04 LTS". Open Ubuntu, and you'll see a bash terminal.
Vignette allows you to scan your contacts and see what it can find for free. If you wish to actually save these updates to your contact list, you must pay for a one-time in-app purchase. That purchase costs $4.99, is not a subscription, and is the only in-app purchase.
Email is used for Gravatar
Twitter
Facebook
A custom network called Instagram
另外作者有提到這個 app 不傳資料到伺服器上，都是在自己的裝置上連到上面提到的 social network 尋找：
Privacy is paramount
All the processing is done on-device; this isn’t the sort of app where your contacts are uploaded en masse to some server, and out of your control.
This is built from the same code base as our existing iOS app and makes use of Apple's Network Extension API to provide native integration into the operating system's networking stack.
這樣可以確保相容性，而且可以用內建的 VPN 機制管理。另外也給了一些 screenshot 可以看，可以看出來就是走 Mac 上的管理方式：
Your $5 monthly Workers compute minimum includes 1 GB of KV storage and up to 10 million KV reads. If you use less than the 10 million included Worker requests now, you can use KV without paying a single cent more.
超過的部份另外再收：
Beyond the minimums, Workers KV is billed at $0.50 per GB-month of additional storage and $0.50 per million additional KV reads.
這樣好像整個 blog 的基本功能都可以直接在上面跑了... 而搜尋靠外部服務，圖片與影音也可以靠外部空間協助？
We work hard to protect user privacy and data security throughout the Apple ecosystem. With the latest update to our guidelines, we made it explicitly clear that apps should not collect information about which other apps are installed on a user’s device for the purposes of analytics or advertising/marketing and must make it clear what user data will be collected and how it will be used.
