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2023 Side Projects

March 2023 - Setup & Launched Point Of Sale system for NGO using Loyverse Learning :  Pros: Can setup on multiple devices, on the go, in store, user friendly, fully supported printer and bar scanner, free version available Cons: OUM settings is too simplified but still able to fulfill the requirements.  Dec 2023 - Setup an open source Knowledge Based System using Growi for NGO  Deployment: Docker container Reference : Install Docker using APT Repository Install Docker Compose sudo apt install docker-compose Install Growi on Docker Growi docker is using node js, elasticsearch  and MongoDB as its tech stack run on detached mode! docker-compose up -d update the docker-compose.yml to use the same network networks:   growi_network:     driver: bridge Mount Elastic Block Storage (Free Tier given by AWS) for Docker usage. to solve out of storage of basic storage given is on 7.6gb. EBS is 20gb extra!! lsblk df -h sudo mkdir /mnt/xxx sudo mount /dev/xxx /mnt/xxx sudo mkfs.ext4 /dev/xxx sud
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Recent posts

Some weird keyboard ISSUE + Ubuntu

 Recently my ubuntu OS  drives me crazy until i keep upgrading to the latest version. Even had issue where post upgrade the system crashed. lol and i reformat back using bootable USB Drive. You can watch how i did it! recorded and uploaded to my YouTube channel . Now im at the Ubuntu 22.04.1 LTS version! Everytime i typed on my keyboard. the numbering goes crazy, the symbols goes crazy..the mouse goes crazy. Until one time i just tried to change the Keyboard setting to English (UK) from English (US)   and it works.    sometimes it works temporarily.  sometimes it work for long hours. still monitoring. but this is my current workaround.  really an old laptop.    takder ke yang nak sponser lappie baru :P
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Learning Flutter (Part 2 - Install / Update Android Studio)

As my Android studio is outdated. Going to install a new one  https://developer.android.com/studio?utm_source=android-studio after downloaded the compressed tarball (.tar.gz) , extract to /opt directory! yeah i override the old one, as i have nothing to worry on eg environment settings. why need to store it in /opt directory? read this please :D  so i have something like  /opt/android-studio then we do the Android SDK update  . . . . today practice is a lot of waiting time :D . . .  Done  then install the Flutter & Dart plugins! ok then updating my Android emulator image! lol.  ..... another waiting time, i can say this practice should be done parallel with other activity. haha yes i am. very light2 and chill2 :D...  tutorial reference https://docs.flutter.dev/get-started/editor
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Rounding Number to the nearest 0.05 SEN!

helping out ngo for some excel work. jotting this down for others reference~ example gsheet formula. mround(cell/range of cells, to the nearest 0.05)   = mround ( F25 , 0.05 )   rounding cent reference  https://www.bnm.gov.my/misc/-/asset_publisher/2BOPbOBfILtL/content/about-the-rounding-mechanism
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Learning Flutter (Part 1 - Install Flutter)

 Trying to learn something new. Want to start with Flutter first. I do have some experience developing Android APP but that was a decade a ago. Using Android SDK to develop from scratch. However as time changed in a glimpse. Now its time to explore a new SDK! Flutter~   First i followed the instructions on how to install Flutter on my linux machine https://docs.flutter.dev/get-started/install/linux encountered few issues.  [!] Android toolchain - develop for Android devices (Android SDK version 29.0.3)     ✗ cmdline-tools component is missing       Run `path/to/sdkmanager --install "cmdline-tools;latest"`       See https://developer.android.com/studio/command-line for more details.     ✗ Android license status unknown.       Run `flutter doctor --android-licenses` to accept the SDK licenses.       See https://flutter.dev/docs/get-started/install/linux#android-setup for more details. [✗] Chrome - develop for the web (Cannot find Chrome executable at google-chrome)   Ok lets fi
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Lets improve Website speed

 Salam All! Today i have the privilege to do some website analysis. The main objective is to improve the current website speed and performance. Well, tbh there's less sale on the website, however the purpose having it available is for reference. Most of the sale transactions happens on Shopee~   First i ran the GTMetrix performance analysis.  https://gtmetrix.com/reports/4nutz.tk/j42YIXSg/  you can see the report completely! here are some screenshots ! fyi im not using any cdn to do the script and image caching, due to my target audience is in Malaysia itself. And the server i deployed is from Singapore.     Steps that i take to improve the speed! Change to only use Webp images! Ive done this step previously, however didnt cater all images. For homepage lets convert all the visible image to webp! Will update from time to time this post! Troubleshoot file loading time Using browser console we can see which scripts taking long time to load then from there we can start debug why the s
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Automate Letsencrypt Certs renewal for Docker with Multisites Wordpress

 Assalamualaikum,  Well to understand this post you will need to read first how i set multiple Wordpress sites in Docker containers ~   LetsEncrypt Certification Auto Renewal   Ok the trick that i did to automate the renewal process is  1. Create 2 separate docker file I'm not able to create a single line letsencrypt command that can run cert renewal for two different domains, thus this is a hack way. If you have any suggestion let me know please!   ls -l wordpress/docker-compose* -rw-rw-r-- 1 cxx cxx 2421 Jun  7 11:32 wordpress/docker-compose-4nutz.yml -rw-rw-r-- 1 cxx cxx 2442 Jun  7 11:28 wordpress/docker-compose.yml For file docker-compose-4nutz.yml small change made on the certbot definition, where i commented out the volumes for another website / kedaibiskut. Highlighted you can just totally remove it. Ensure the command is correct only for one domain and one path. certbot:     depends_on:       - webserver     image: certbot/certbot     container_name: certbot     volumes:
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