Install the Following:

sudo  apt install ffmpeg libmariadb3 libpq5 libmicrohttpd12

sudo  apt install python2 python-dev-is-python2

sudo  apt install libssl-dev libcurl4-openssl-dev libjpeg-dev zlib1g-dev

Download MotionEye:

wget https://github.com/Motion-Project/motion/releases/download/release-4.3.2/pi_buster_motion_4.3.2-1_armhf.deb

Run dpkg Command:
 
dpkg -i pi_buster_motion_4.3.2-1_armhf.deb 

Install PYPA:

curl https://bootstrap.pypa.io/pip/2.7/get-pip.py --output get-pip.py

python2 get-pip.py

Install MotionEye:

pip2 install motioneye

Setting Up The Directory:

mkdir -p /etc/motioneye
cp /usr/local/share/motioneye/extra/motioneye.conf.sample /etc/motioneye/motioneye.conf

Preparing The Media Directory:

mkdir -p /var/lib/motioneye

Add An Init Script, Configure It To Run At Start And Run MotionEye:

cp /usr/local/share/motioneye/extra/motioneye.systemd-unit-local /etc/systemd/system/motioneye.service

systemctl daemon-reload
systemctl enable motioneye
systemctl start motioneye

To Upgrade:

pip install motioneye --upgrade
systemctl restart motioneye