Bad environment variables messed up booting on Debian bassed (Raspberry Pi OS)

Question

I set the wrong path in some environment variables, and now booting gives a whole new taste. The OS is Raspberry Pi OS, which is Debian based.

RESULT:
Right after booting, I get a black screen with a mouse. Click any mouse buttons, and I get 2 options, "reconfigure" and "exit". "Reconfigure" doesn't seem to do anything. I hit "exit" and it feels like the program is being shut down and starting up again. I get a brief moment where I can do "ctrl" + "alt" + "F1" and I get to see for a brief second some command/Terminal code thingy, and then the black screen with the mouse is loaded again. (bad terminology, I'm am very new to Linux)

What I did:
The bad thing I did was sudo nano /etc/environment and added a path to the Vulkan_SDK enviroment file setup-env.sh. (I had no clue how to do it), and this was incredibly stupid of me.

PATH="path/to/setup-env.sh"

Content of setup-env.sh:

# Copyright (c) 2015-2023 LunarG, Inc.

# source this file into an existing shell to setup your environment.
#
# See docs for in depth documentation:
# https://vulkan.lunarg.com/doc/sdk/latest/linux/getting_started.html

ARCH="$(uname -m)"
VULKAN_SDK="$(dirname "$(readlink -f "${BASH_SOURCE:-$0}" )" )/$ARCH"
export VULKAN_SDK
PATH="$VULKAN_SDK/bin:$PATH"
export PATH
LD_LIBRARY_PATH="$VULKAN_SDK/lib${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
export LD_LIBRARY_PATH
VK_ADD_LAYER_PATH="$VULKAN_SDK/share/vulkan/explicit_layer.d${VK_ADD_LAYER_PATH:+:$VK_ADD_LAYER_PATH}"
export VK_ADD_LAYER_PATH
if [ -n "${VK_LAYER_PATH-}" ]; then
    echo "Unsetting VK_LAYER_PATH environment variable for SDK usage"
    unset VK_LAYER_PATH
fi

How can I get past this, remove this line in envrionment, and get it back to "normal" again?

Answer 1

with CTRL + (left) ALT + F2, I was able to pop-up the console and login with my user account. Than it was a simple matter of opening the file, deleting the wrongfull path in etc/enviroment, reboot, and it was like nothing ever happend.

So again:

sudo nano /etc/environment

It opend the file and delete the bad line.
Done.

For the full disclosure of my problem:
To the etc/environment, I added: PATH="/home/lake/vulkan/1.x.yy.z/setup-env.sh"

this was a bad, bad thing!
For my case with setting up the VULKAN_SDK environment varriables, it was:

nano ~/.profile 

And than add the line:

. /home/lake/vulkan/1.x.yy.z/setup-env.sh

CTRL + (left) ALT + F2, always remember!