presentation in PDF https://www.sirgog.com/wp-content/uploads/2021/12/Precursor.pdf
and again as libre office impress format https://www.sirgog.com/wp-content/uploads/2021/12/Precusor.odp
video
presentation in PDF https://www.sirgog.com/wp-content/uploads/2021/12/Precursor.pdf
and again as libre office impress format https://www.sirgog.com/wp-content/uploads/2021/12/Precusor.odp
video