WORK IN PROGRESS
Back to the roots ...
Long time ago the Online-Tea-Timer started as a Java Applet
(will be continued)
Use from your command line (terminal/cli/console) with:
(if the Java appletviewer is installed)
appletviewer https://onlineteatimer.blogspot.com/2019/01/appletviewer.html
Without the appletviewer, which is part of the JDK, you might be able to use:
javaws -html https://onlineteatimer.blogspot.com/2019/01/appletviewer.html
(but that is experimental and not included in every JRE)
