spectrum 是一个 online community 的开源项目，里面的技术栈可以参考习

项目结构和技术栈

摘自官方README.md

Codebase
Technologies
With the ground rules out of the way, let's talk about the coarse architecture of this mono repo:

Full-stack JavaScript: We use Node.js to power our servers, and React to power our frontend apps. Almost all of the code you'll touch in this codebase will be JavaScript.
Background Jobs: We leverage background jobs (powered by bull and Redis) a lot. These jobs are handled by a handful of small worker servers, each with its own purpose.
Here is a list of all the big technologies we use:

RethinkDB: Data storage
Redis: Background jobs and caching
GraphQL: API, powered by the entire Apollo toolchain
Flowtype: Type-safe JavaScript
PassportJS: Authentication
React: Frontend React app
Folder structure
spectrum/
├── api        # API server
├── athena     # Worker server (notifications and general processing)
├── chronos    # Worker server (cron jobs)
├── desktop    # desktop apps (build with electron)
├── docs
├── email-templates
├── hermes     # Worker server (email sending)
├── hyperion   # Rendering server
├── mercury    # Worker server (reputation)
├── public     # Public files used on the frontend
├── shared     # Shared JavaScript code
├── src        # Frontend SPA
└── vulcan     # Worker server (search indexing; syncing with Algolia)

study

resolutions

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"resolutions": {
    "immutable": "3.7.4",
    "draft-js": "npm:draft-js-fork-mxstbr",
    "jest-environment-node": "22.4.3",
    "jest": "22.4.3",
    "fbjs": "0.8.16",
    "event-stream": "3.3.4"
  },
# 允许您覆盖特定嵌套依赖项的版本。 有关完整规范，请参见选择性版本解析 RFC。
# https://github.com/yarnpkg/rfcs/blob/master/implemented/0000-selective-versions-resolutions.md
# 注意，yarn install —flat 命令将会自动在 package.json 文件里加入 resolutions 字段

immutable-js

draft.js