ARCHing

INSTALLING .deb PACKAGES

install debtap(aur) yay -S debtap
debtap -u first time only, then debtap <file_name>
debtap converts the debian package file into tar file, extract tar -xvf <file_name>
this provides an /opt and /usr directories which contains compiled binary to the package.(completely depends on the package provider how internal directories are managed.)
make a desktop entry or put them in systems /opt and /usr dir.

executable text files respnsable for creating a custom launch menu item for a perticular software.
finally, use dex to invoke desktop file, can also bind keyboard shortcuts to invoke dex and application.

error occurs on boot : lightdm failed to start, graphical interface reached.
reason :: lightdm initially, after install lightdm sets up seat* in such a way that it can work with currently installed graphics drivers.
Nvidia users are supposed to install nvidia drivers first sudo pacman -S nvidia
head to cd /etc/lightdm/
create a file like sudo touch displayscript.sh
input :: sudo <any_text_editor> displayscript.sh uses vim? then sudo vim displayscript.sh
```
#!/bin/sh
xrandr --setprovideroutputsource modesetting NVIDIA-0
xrandr --auto
```
save (in vim quit --insert-- instance and :wq)
sudo chmod +x displayscript.sh
edit file "lightdm.conf", under seat* find line with "display-setup-script" then delete "#" and insert path to the "displayscript"
```
[Seat:*]
...
#display-setup-script=
...
```
changes to
```
[Seat:*]
...
display-setup-script=/etc/lightdm/displayscript.sh
...
```
finally enable lightdm to start at boot, sudo systemctl enable lightdm.service and reboot