Comparison of 10 ACME / Let's Encrypt Clients
http://www.metachris.com/2015/12/comparison-of-10-acme-lets-encrypt-clients/
Let’s Encrypt : joies… et déceptions !
https://blog.imirhil.fr/2015/12/12/letsencrypt-joie-deception.html
Installer un certificat Let's Encrypt
https://xave.org/post/lets-encrypt
Let’s encrypt automation on Debian
https://eblog.damia.net/2015/12/03/lets-encrypt-automation-on-debian/
acme-tiny
https://github.com/diafygi/acme-tiny
https://gist.github.com/xrstf/581981008b6be0d2224f
Configuring Let's Encrypt for nginx with Automatic Renewal
https://johnmaguire.me/2015/12/configuring-nginx-lets-encrypt-automatic-renewal/
Configuring Let's Encrypt with Nginx
https://github.com/eustasy/letsencrypt-with-nginx
Let's Encrypt Without Sudo
https://github.com/diafygi/letsencrypt-nosudo
Get HTTPS for free!
https://github.com/diafygi/gethttpsforfree
Non web servers
https://community.letsencrypt.org/t/use-on-non-web-servers/425
https://community.letsencrypt.org/t/automated-installation/3681/3
Wilcard certificates ( yes it's important and useful ! )
https://github.com/letsencrypt/letsencrypt/issues/66
https://community.letsencrypt.org/t/please-support-wildcard-certificates/258
Official documentation
https://letsencrypt.readthedocs.org/en/latest/using.html#installation