Why do I need this?
You probably don't. However, if you're a modder who uses their own site and has an update check, or other kind of access to your web site, you may have come across a problem - you can't access Let's Encrypt resources on the version of Java that Mojang ship with their launcher.
What does this do?
It installs the Let's Encrypt certificate at runtime when the mod is loaded.
简介
本 Mod 在游戏启动时会自动安装 Let's Encrypt 证书,以便其它模组需要访问使用 Let's Encrypt 证书的网站。