How Do Story Points Relate to Hours? | Mike Cohn's Blog - Succeeding With Agile®

This is a checklist I use to work on issues. For this purpose I extracted several cards related to the makandra process and ported them into a check list and ref...

To force a check on your next reboot (here for your root partition), simply:

touch /forcefsck

To manually do this, here is how to do it for the first partition on sda, when you are using ext4:

fsck.ext4 -fn /dev/sda1

• -f forces th...

Using ffmpeg, you can easily re-encode a video to reduce its file size.

Command

Do it like this:

ffmpeg -i input.mp4 -c:v libx264 -crf 23 -preset slow -c:a copy -movflags +faststart output.mp4

Arguments

• -i input.mp4 specifie...

The linked article explains how to get a database-wide lock without creating table rows:

This article explains how I replaced file-based methods to...

PostgreSQL's array data type is pretty useful, but manipulating values of arrays can be awkward because of its syntax.

Consider the following users table which each example below will sta...

If you need to modify (e.g. add 2px) a Sass variable that defines multiple values as one (e.g. for short-hand CSS definitions such ass padding), you can by using nth. It's ugly.

While you could split up such variables into multiple values (e....

Here is how to start your Rails application to accept both HTTP and HTTPS in development.

1. gem install passenger

2. Create a [self-signed SSL certificate](https://makandracards.com/makandra/15901-howto-create-a-self-signed-certificate...

If you have a PNG and want to know a pixel's alpha channel value, you can use Gimp:

• Use the color picker tool
• Hold the Shift key while clicking the pixel

A window will appear, containing color information, including the alpha channel.

![G...

After some deliberation, we decided to implement a "schema-less" storage system on top of MySQL rather than use a completely new storage system. This post attempts to describe the high-level details of the system.

In development, we store files using ActiveStorage's disk service. This means that stored files are served by your Rails application, and every request to a file results in (at least!) one non-trivial log entry which can be annoying. Here is how...