In the past worked as a teacher in professional software for graphic technics.
After my retirement (2016) I had to give up my software. It was hard for me having no longer the availability of these programs. Therefore I sought and found substitutes by the Open Source programs. Not ideal, but for my purposes sufficient.
彼らに感謝を込めて：
Fastly
OSUOSL
Sponsors
作成者（編集者）たち
