Handler

Seaside, short for Seaside Web Framework, was created in 2000 by Avi Bryant. Seaside is a web application framework for Smalltalk that emphasizes component-based development and stateful web programming. It is used for building interactive, dynamic web applications and research prototypes, particularly where maintainable, modular, and highly interactive UI design is required.

HyperTalk, short for HyperTalk Scripting Language, was created in 1987 by Dan Winkler at Apple as the scripting language for HyperCard. HyperTalk is a high-level, English-like scripting language designed for building interactive applications, educational software, and hypermedia systems. It was primarily used on classic Apple Macintosh systems to script buttons, cards, and stacks within HyperCard.