Pure Functions & Paladins Building TTRPGS with F# and MVU

on YouTube ↗28m

" summary

A working Fogent Roleplay web app built with Full Stack F# using the SAFE stack and Elmish MVU demonstrates pure update functions, message-passed state and websocket sync; client and server share the same model/update code in a shared project so the same character message updates local DB and broadcasts to others, avoiding full-object diffs. The talk shows an inject pattern for passing parent data, use of commands for async fetch, and an echo GUID to prevent double-applies.

AI-written summary · about

" chapters (11)

1. 0:00Introduction
2. 1:06Building my own TTRPG
3. 2:51F# and Safe Stack
4. 3:34MVU for state management
5. 4:57Model View Update basics
6. 8:06Chaining MVU components
7. 11:15Inject pattern for data
8. 15:46Commands for side effects
9. 19:42Shared client-server logic
10. 21:50State sync across clients
11. 24:38Advanced patterns & Q&A

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