d27704a2bc99689620a506c41f99f52fa85dca22
A checkpoint is not a message. DType.ARTIFACT carries a reference — digest, size, media type, name — so everything on the wire stays JSON and thirty megabytes never sit in Redis, which answers the vision's open binary-payload question by narrowing it: inline codecs would only serve payloads too small to be worth a round trip, and nothing asks for that. The store is content-addressed rather than per-run, for three reasons that all pay later: a sweep whose fifty configs share one preprocessed input stores it once, a reference stays valid however it is passed around because it names content instead of a location, and the digest is what a stage cache will compare — so building it in now is what keeps that from being a change to the message contract. Node code calls fluksio.save_artifact/load_artifact and cannot tell whether it is writing the engine's own directory or putting bytes over HTTP, which is what will let the same flow run on a remote worker unchanged. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AD8SfVhzXBG2nAfFcVh3iD
Fluksio App
Fluksio has the goal to build a revolutionary system to tackle any sort of automation challenge.
The core of Fluksio: a node-based, test-driven automation software built to scale. This
repo holds the FastAPI backend, the flow engine, and the dashboard SPA. It is served on
app.${DOMAIN} (SPA) and api.${DOMAIN} (API); the marketing site lives in the sibling
index repo.
Layout
backend/ FastAPI + SQLModel + Alembic + Postgres
app/flow/ the flow engine (nodes, pipeline, state backends, controller)
frontend/ React 19 + TanStack Router + Tailwind 4 + shadcn/ui
docker/ compose.yml → compose.dev.yml → compose.local.yml (+ compose.traefik.yml)
scripts/ generate-client.sh, test.sh
Getting started
Normally driven from the workspace root (make init once, then make dev). Standalone:
make install # uv sync + bun install
make dev-utils # db, adminer, proxy, mailcatcher, prestart only
make dev-backend # FastAPI on :8000, hot reload
make dev-frontend # Vite on :5173
make test # pytest + Playwright
make lint # ruff + mypy + biome
make generate-client # regenerate the frontend SDK from the OpenAPI schema
make help lists every target.
Documentation
ROADMAP.md— strategy and feature recordNOTEPAD.md— deferred work and findingsDESIGN.md— points at the workspace root'sDESIGN-GUIDELINES.mddocs/architecture/in the siblingdocsrepo — the requirement sources
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Other
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