(updated: I found a better way here.) Let’s Encrypt started public beta today. It provides free and semi-automated certificate issuance/renewal/revocation. With this, you can serve your web application securely with HTTPS. 1. Install Let’s Encrypt You can install Let’s Encrypt...

Telegram provides free but extremely useful bot API. Here are my notes about building a bot on my Raspberry Pi server. 0. Prerequisite I’m quite into Golang these days, so I made up my mind to build things with it....

Pushbullet is a very useful service. Users can send & receive notifications of various types(message, url, file, …) through it, and all those notifications are synchronized across all of their devices. It even provides HTTP APIs, for free. I used...

Sometimes there are some updates on the upstream(original) Jekyll-now repository, and you want to apply those changes to your forked repository. Here is how to do that: 0. Add remote url as upstream $ git remote add upstream https://github.com/barryclark/jekyll-now.git Then...