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1. How to Deploy a Rails app to Ubuntu with Dokku in 2023, March 18, 2022
   In this guide, I will introduce how to deploy a Ruby on Rails app from scratch with the Dokku open source program. This guide aims at beginners who are passionate about deploying their Ruby on Rails applications to the Internet.
2. How to Control Chipsee PC Backlight with Python and Browser, March 21, 2023
   Today let's see how we can adjust the screen backlight of a Chipsee industrial Pi PC.
3. How to Control Chipsee PC Buzzer with Python and Browser, April 13, 2023
   Today let's see how we can control the builtin buzzer of a Chipsee industrial Pi PC.