Sorry, this entry is only available in Japanese.
Here’s the way I added swap file in AWS EC2, t2.medium. At that time, I was using Jenkins in the computer, and Jenkins didn’t work because of less swap area.
Here’s a tips to connect PostgreSQL in VirtualBox guest OS, from host OS. Host OS can be Windows and Mac, because this is change of PostgreSQL setting.
I introduce the way to use Kotlin in terminal. Thanks for that, we can use interpreter of Kotlin, which we can often see in LL.