How to install NodeJS LTS on Windows without admin rights (as a local user)

1. Go to Node.js download page. Download the binary. This includes Node.js and npm.
2. Extract to a local directory. (Eg: C:\Users\<user>\Applications\node-v24.16.0-win-x64)
3. Add the path-to-directory to the local PATH in Environment Variables (aka. User variables for <user>)

Source: Stackoverflow

Enable Opera Speed Dials on Address Bar

This used to be activated by default, but not anymore. To re-enable Speed Dial tiles on address bar when you click on it, enable the following;

Tested on Opera version: 123.0.5669.23 on 2025 Nov 05

VirtualBox VT-x is being used by another hypervisor error on Ubuntu 24.04.3

So the error basically looks like this;

VT-x is being used by another hypervisor (VERR_VMX_IN_VMX_ROOT_MODE).

VirtualBox can't operate in VMX root mode. Please disable the KVM kernel extension, recompile your kernel and reboot (VERR_VMX_IN_VMX_ROOT_MODE).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: ConsoleWrap
Interface: IConsole {6ac83d89-6ee7-4e33-8ae6-b257b2e81be8}

The solution is to check the running KVM and shutting them down

lsmod | grep kvm
lsof | grep kvm

Then remove them, the usual suspects are

kvm_intel

and

kvm

sudo rmmod kvm_intel
sudo rmmod kvm

Revert a pushed GIT commit

git reset --hard HEAD~
git push -f

git reset --hard HEAD

or

git reset --hard HEAD~1

: What it does

This command forcefully resets your current branch to the commit just before the latest one (HEAD~1), and:

• Moves the HEAD pointer back one commit.
• Updates the index (staging area) to match that previous commit.
• Overwrites your working directory to match that previous commit — meaning any changes in the latest commit and any uncommitted changes are lost.

In short, it erases the last commit and everything in it, as if it never happened.

---

Difference from git revert

Feature	git reset --hard HEAD~1	git revert HEAD
Action	Deletes the last commit	Creates a new commit that undoes the last one
History	Rewrites history (destructive)	Preserves history (non-destructive)
Safety	Risky — can lose data	Safe — doesn't remove any commits
Collaboration	Not recommended on shared branches	Safe for shared branches

• git revert is like saying “Oops, let me undo that” — but it keeps a record of the mistake.
• git reset --hard is like saying “Let’s pretend that never happened” — and it wipes it clean.

---

If you're working solo and want a clean slate, reset --hard is fine. But if you're collaborating, revert is the safer choice.

Want to see an example of each in action?

Ubuntu 24.04.2 - Wifi and NVIDIA drivers do not work on the Kernel version 6.11.0-25-generic

Solution

I wrote about the solution that worked for me after much research on AskUbuntu

Useful links 

Ubunru 24.04.2 6.11.0-19-generic wifi link down 

Might work 

Switch to an old Kernel version that works, and execute the following 

sudo apt install --reinstall linux-generic 

sudo apt install linux-modules-extra-6.11.0-25-generic

Apache2/PHP increase upload file size

Edit the php.ini Use a standard text editor to open

/etc/php/apache2/php.ini

, search for the following variables and change/increase these to (as desired but a general guideline is mentioned):

memory_limit = 512M
upload_max_filesize = 100M
post_max_size = 100M

Some more values to change if you want a better performance of your web server:

max_execution_time = 600
max_input_time = 600
memory_limit = 1024M

Save and close the editor/file and restart the apache web server with:

service apache2 restart

or

systemctl restart apache2

Ubuntu 24.04.1 - libadwaita apps can't detect dark mode - fix

Found solution here on Stackoverflow. Open /etc/environment

sudo nano /etc/environment

Then add the following line to the end of it.

ADW_DEBUG_COLOR_SCHEME=prefer-dark

Save it and source it,

source /etc/environment

Logout and Login. Should libadwaita apps work in dark mode now.