pictureViewer
A tool to create an interactive web page to present pictures.
Version 1 (since 2004) used PHP to render the HTML pages and create thumbnails on the server on demand (with caching). Additional dynamic functionality was implemented in Javascript.
Version 2 (since 2018) is a static HTML web page generated by a Go program with all dynamic functionality by Javascript.
Live example of the pictureViewer.
Github link follows.