[Moodle] How to enable LaTeX single dollar sign delimiter in Moodle
Single dollar sign delimiter is not a standard notation in LaTeX. However, most of mathematicians are using single dollar sing delimiter due to its convenience. So, it is crucial to enable it in your LMS. This article shows how to enable it in Moodle LMS. First, navigate to Site administration -> Plugins -> Filters -> […]
Video Editing Bash scripts with FFmpeg
I asked ChatGPT to create some Bash scripts that encapsulate FFmpeq commands to make my video editing easier. I do not do much craze editing but just trimming, cutting-off and so on. Here are mostly used my scripts. 1. Thumbnail creation I try to create thumbnail out of my video. The script below captures the […]
Hugh Double Rainbow in Laurel Creek Conservation Area
I was checking the weather to see if I can go riding or not. Then.. This happened.
Halfbike
Two minimalistic architects started this project, Halfbike, and it built huge fan base and stories. It is mentioned that it has a slight learning curve against your normal bike. It looks to take around a half of hour or so to get used to this new machine. OR?? it might take a week to feel […]
[Story] Janitor’s Key Box III – Reincarnation
Previously… I have been working with Moses’ big sister, Miriam, for a long time. She is one of the wisest creatures I have ever known or at least time patrollers I have ever known. I couldn’t see her for a while since her last duty to check the incident I caused. That incident is coded […]
Cleaning my mechanical keyboard
My son is using one of my mechanical keyboard and it has been beat up too much by snacking during gaming and watching YouTube video. So, it is time to clean up. I’ve been looking for the right time to do it and finally did it. Key Cap Removal First of all, I removed all […]
Blurring faces and Stabilizing your videos
I am using Deface to blue faces automatically in my YouTube. It used take me over 10 hours to process 18 minutes long 4K 30FPS video for me. So, I read README.md carefully. The blurring time went down to 1 hour for now. It got faster 10 times. Hardware Acceleration One of them was using […]
[Story] Janitor’s Key Box II – Block Chain
Previously… JKB team has summoned all of time patrollers to announce the changes on our Janitor’s key box. They explained that they has found one of ancient technologies called block chain and it looked more secure and integrated than the current JKB. That’s the reason why they are switching over the technology. I could not […]
Converting V-brake to Disc brake
Swytch bike hub wheel is disc brake ready. So, I bought one of 185mm disks. I also needed to buy one caliper for the conversion. My trike is not ready for the disc brake. So, it does not have ears for disc brake caliper. To mount that caliper, mounting bracket is needed. It is important […]
[MySQL] Backup, Restore, Import, and Export
When needed, snapshot backups of MySQL instance are not that useful. So, I tend to backup my DB with mysqldump. The script below dump all of schemas including system tables, users and privileges. It also drops table if exists and add them with its data. This script saved my days so often. One DB/Schema can […]