# servicetitan/Stl.Fusion

Build real-time apps (Blazor included) with less than 1% of extra code responsible for real-time updates. Host 10-1000x faster APIs relying on transparent and nearly 100% consistent caching. We call it DREAM, or Distributed REActive Memoization, and it's here to turn real-time on!

Repository: https://github.com/servicetitan/Stl.Fusion
Canonical: https://ross.abutalabs.com/products/stlfusion
Language: C#
License: MIT
License Family: permissive
Topics: blazor, blazor-server, blazor-webassembly, realtime, realtime-tracking, real-time, websockets, caching, caching-library, caching-memory, high-performance, highload, blazor-components, dotnet-framework, dotnetcore
Last push: 2026-06-16T17:29:38+00:00

## Health v2 (maintenance only)
Score: 71/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 87, release rhythm 35, longevity 100
- inputs: {"age_days": 2665, "days_push": 78, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1888, forks 105 (observed 2026-08-28T04:05:49.337831+00:00)

## What it is
Fusion is a .NET library implementing Distributed REActive Memoization (DREAM), which combines transparent caching, real-time cache invalidation, and live updates across backend services and clients. It lets developers build real-time apps, including Blazor WebAssembly/Server/MAUI apps sharing one codebase, with minimal extra code.

## Use cases
- build real-time dashboards with live-updating data in Blazor
- cache API responses with automatic invalidation when underlying data changes
- share a single codebase across Blazor WebAssembly, Server, and MAUI clients
- reduce network chattiness between microservices and clients
- replace SignalR/WebSockets plumbing for pushing updates to clients
- manage client-side state reactively without Redux or MobX
- speed up high-load APIs with consistent caching

## When to choose
- you're building a .NET or Blazor app needing real-time updates with minimal code
- you need caching with automatic, consistent invalidation across services and clients
- you want one codebase for Blazor WebAssembly, Server, and Hybrid/MAUI
- your APIs must handle high load with near-instant cached responses

## When to avoid
- your stack is not .NET/C#
- you need a simple cache without real-time invalidation - Redis or memcached may suffice
- your team prefers well-established, widely-adopted solutions like SignalR plus a standard cache
- you're building a non-web or non-UI application with no real-time requirements

## Facets
- artifact type: library
- maturity: active
- function: caching, state-management, websocket, rpc, middleware
- domain: web-development, backend, microservices, cross-platform
- platform: dotnet, cross-platform, browser
- tags: blazor, reactive-memoization, cache-invalidation, realtime-updates, signalr-alternative, dotnet, real-time, web-server

## Member repositories
- servicetitan/Stl.Fusion (main) score 71

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:49.337831+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:13:30.877364+00:00, confidence not recorded.
  - readme: https://github.com/servicetitan/Stl.Fusion (fetched 2026-08-28T04:05:49.337831+00:00, sha 1f88206a9d61)
- Data as of 2026-08-30T08:39:29.467469+00:00.