Install opencv raspberry

 https://qengineering.eu/install-opencv-4.4-on-raspberry-pi-4.html

Measure the amount of color in the picture

 If you want to measure the amount of color an image has (in percentage), you can use the following repo:

https://github.com/Eitol/document_color_meter

Fix err_cleartext_not_permitted ionic 3

Add this namespace definition to <widget

 xmlns:android="http://schemas.android.com/apk/res/android"

Then add this config in widget:

    <edit-config file="app/src/main/AndroidManifest.xml" mode="merge" target="/manifest/application">

        <application android:usesCleartextTraffic="true" />

    </edit-config>

Download XCode 11.7 from Google Drive

Intentando descargar xcode desde el portal de apple developer, me dió un error de descarga, además fué demasiado lento. Así que luego lo subí a google drive:

Original:

 https://download.developer.apple.com/Developer_Tools/Xcode_11.7/Xcode_11.7.xip

Copia en google drive:

https://drive.google.com/file/d/1oOhyYlyM4mOZPFYVcSblvVdWM8nB1l4-/view?usp=sharing

Oracle DB with Jetbrains DataGrip and DBeaver

First run the oracle db in docker:

docker run --name ora121 -p 1521:1521 -p 5500:5500 -e ORACLE_SID=ORCLCDB -e ORACLE_PDB=pdb1 -e ORACLE_PWD=Oradoc_db1 -e ORACLE_CHARACTERSET=AL32UTF8 store/oracle/database-enterprise:12.2.0.1

Jetbrains DataGrip

DBeaver

java.library.path in ubuntu

/usr/java/packages/lib/amd64
/usr/lib/x86_64-linux-gnu/jni
/lib/x86_64-linux-gnu
/usr/lib/x86_64-linux-gnu
/usr/lib/jni
/lib:/usr/lib

uninstall gnome games

sudo apt remove gnome-chess five-or-more four-in-a-row hitori iagno gnome-klotski lightsoff gnome-mahjongg gnome-mines gnome-nibbles gnome-tetravex gnome-taquin tali swell-foop gnome-robots quadrapassel aisleriot