Onboarding Docs

[georg-schwarz]

We should provide some better onboarding docs to simplify becoming productive for new developers.

Until we have gathered enough materials, we should use this issue to build up a collection of useful material. We should gather two types of materials:

• Links to tutorials for used technologies
• Reference to implementations in Jayvee by pointing to successfully merged PRs

Tutorials / Links

• TypeScript as the base programming language
  • Type guards for type checking
  • unknown, the better any
• Langium for defining the DSL
• NX for managing the mono-repo
  • NPM scripts as shortcuts for NX commands

Reference Implementations

• Expressions
  • Add in operator
• Built-in blocktypes in stdlib
  • Add XlsExtractor and Sheet picker
• Composite blocktypes in stdlib
  • Add CsvExtractor to stdlib
• Built-in Types
  • Refactoring: Support scientific integer notation
  • Add workbook iotype