# kjj6198/build-your-own-x architecture

> Architecture diagram of the GitHub repository kjj6198/build-your-own-x, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-08-04). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/kjj6198/build-your-own-x
- Repository: https://github.com/kjj6198/build-your-own-x

## Overview

#### Purpose and Scope
This repository contains the “Build Your Own X” curated learning-resource catalog, with the canonical content in `README.md`. It also includes a small Svelte browser UI that likely presents that catalog as a navigable single-page experience. The repository is content-centric: no server, database, authentication, or proprietary external API is indicated.

#### Runtime and Entry Points
The application runs in the browser as a JavaScript/Svelte bundle:
- `public/index.ejs` is the HTML template and browser mount boundary.
- `src/main.js` is the client bootstrap entry point.
- `src/App.svelte` is the root Svelte component.

Node.js is used for dependency installation and bundling, as indicated by `package.json`, `package-lock.json`, and `rollup.config.js`. Rollup produces the browser-consumable assets; static styling is supplied from `public/global.css`.

#### Content Source and Data Boundary
`README.md` is the authoritative, human-editable resource catalog. It is organized into categories (for example, renderers, databases, operating systems) and resource links annotated by implementation language.

A separate root-level model layer appears to bridge catalog data into the UI:
- `Model.js`
- `script.js`
- `README.md`

Given the file layout, these root JavaScript files likely represent or transform catalog data independently of Svelte components. Their exact relationship cannot be confirmed from the tree alone; changes to catalog parsing or representation should treat `README.md` as the source-of-truth boundary.

#### UI Composition
The Svelte interface is split into a small, structural component hierarchy:
- `src/App.svelte` composes the page-level application.
- `src/Navbar.svelte` owns navigation controls or section links.
- `src/Content.svelte` renders the catalog’s main content.
- `src/ScrollAnchor.svelte` provides section/scroll targeting behavior.

This separation indicates a static-document navigation flow rather than route-driven application behavior: user navigation selects or scrolls to anchors, and content is rendered locally in the browser.

#### Primary Control and Data Flow
1. The build process starts from the client entry `src/main.js`.
2. `src/main.js` mounts `src/App.svelte` into the document defined by `public/index.ejs`.
3. `src/App.svelte` coordinates navigation and catalog presentation through `src/Navbar.svelte` and `src/Content.svelte`.
4. `src/ScrollAnchor.svelte` connects navigation targets to content sections.
5. Catalog/model data, apparently associated with `README.md`, is consumed by the rendering layer; outbound links navigate to third-party tutorial and project sites.

The principal external boundary is therefore browser navigation to the many linked external resources. There is no evidence of runtime data fetching or backend-mediated content delivery.

#### Infrastructure and Change Boundaries
- **Content changes:** `README.md`; preserve heading/anchor structure because the UI navigation may depend on it.
- **Data/model changes:** `Model.js`, `script.js`; validate any assumptions about README-derived category names, links, and language labels.
- **Presentation changes:** `src/App.svelte`, `src/Content.svelte`, `src/Navbar.svelte`, `public/global.css`.
- **Build/deployment changes:** `rollup.config.js`, `public/index.ejs`.

The deployment artifact is a static site: HTML template, bundled JavaScript, and CSS can be hosted by any static-file server or CDN.

Main entry points: [`rollup.config.js`](https://github.com/kjj6198/build-your-own-x/blob/master/rollup.config.js) (Rollup Build), [`src/App.svelte`](https://github.com/kjj6198/build-your-own-x/blob/master/src/App.svelte) (Root App), [`src/Content.svelte`](https://github.com/kjj6198/build-your-own-x/blob/master/src/Content.svelte) (Catalog Content), [`public/index.ejs`](https://github.com/kjj6198/build-your-own-x/blob/master/public/index.ejs) (HTML Template)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_content["Catalog Data"]
  node_readme["Resource Catalog<br/>Markdown<br/>[README.md]"]
  node_model["Catalog Model<br/>JavaScript<br/>[Model.js]"]
  node_script["Catalog Transform<br/>JavaScript<br/>[script.js]"]
end

subgraph group_ui["Browser UI"]
  node_main["Client Bootstrap<br/>Svelte entry<br/>[main.js]"]
  node_app["Root App<br/>Svelte component<br/>[App.svelte]"]
  node_navbar["Navigation<br/>Svelte component<br/>[Navbar.svelte]"]
  node_content_view["Catalog Content<br/>Svelte component<br/>[Content.svelte]"]
  node_scroll_anchor["Scroll Anchors<br/>Svelte component"]
  node_global_css["Global Styles<br/>CSS<br/>[global.css]"]
end

subgraph group_build["Build &amp; Delivery"]
  node_html_template["HTML Template<br/>EJS<br/>[index.ejs]"]
  node_rollup{{"Rollup Build<br/>Bundler config<br/>[rollup.config.js]"}}
  node_package["Node Dependencies<br/>npm manifest<br/>[package.json]"]
  node_static_site["Static Site Assets<br/>Deployment artifact"]
end

node_browser(("Browser<br/>Client runtime"))
node_external_links(("External Learning Resources<br/>Third-party sites"))

node_readme -->|"catalog source"| node_model
node_readme -.->|"catalog source"| node_script
node_script -.->|"transforms"| node_model
node_model -->|"catalog data"| node_content_view
node_package -->|"provides tooling"| node_rollup
node_rollup -->|"bundles entry"| node_main
node_rollup -->|"builds for template"| node_html_template
node_rollup -->|"emits assets"| node_static_site
node_html_template -->|"included HTML"| node_static_site
node_global_css -->|"included styles"| node_static_site
node_main -->|"mounts"| node_app
node_html_template -->|"mount target"| node_main
node_app -->|"composes"| node_navbar
node_app -->|"composes"| node_content_view
node_navbar -->|"selects targets"| node_scroll_anchor
node_scroll_anchor -->|"scrolls sections"| node_content_view
node_content_view -->|"outbound links"| node_external_links
node_static_site -->|"served as static files"| node_browser
node_browser -->|"runs"| node_app

click node_readme "https://github.com/kjj6198/build-your-own-x/blob/master/README.md"
click node_model "https://github.com/kjj6198/build-your-own-x/blob/master/Model.js"
click node_script "https://github.com/kjj6198/build-your-own-x/blob/master/script.js"
click node_main "https://github.com/kjj6198/build-your-own-x/blob/master/src/main.js"
click node_app "https://github.com/kjj6198/build-your-own-x/blob/master/src/App.svelte"
click node_navbar "https://github.com/kjj6198/build-your-own-x/blob/master/src/Navbar.svelte"
click node_content_view "https://github.com/kjj6198/build-your-own-x/blob/master/src/Content.svelte"
click node_scroll_anchor "https://github.com/kjj6198/build-your-own-x/blob/master/src/ScrollAnchor.svelte"
click node_global_css "https://github.com/kjj6198/build-your-own-x/blob/master/public/global.css"
click node_html_template "https://github.com/kjj6198/build-your-own-x/blob/master/public/index.ejs"
click node_rollup "https://github.com/kjj6198/build-your-own-x/blob/master/rollup.config.js"
click node_package "https://github.com/kjj6198/build-your-own-x/blob/master/package.json"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_readme,node_model,node_script toneBlue
class node_main,node_app,node_navbar,node_content_view,node_scroll_anchor,node_global_css toneAmber
class node_html_template,node_rollup,node_package,node_static_site toneMint
class node_browser,node_external_links toneNeutral
```

## Components

### Catalog Data

Human-maintained catalog and its UI-facing model bridge.

- [Resource Catalog](https://github.com/kjj6198/build-your-own-x/blob/master/README.md): Markdown · Canonical categories, links, and language annotations. · `README.md`
- [Catalog Model](https://github.com/kjj6198/build-your-own-x/blob/master/Model.js): JavaScript · UI-facing catalog representation. · `Model.js`
- [Catalog Transform](https://github.com/kjj6198/build-your-own-x/blob/master/script.js): JavaScript · May transform README-derived catalog data. · `script.js`

### Browser UI

Svelte single-page catalog navigation and rendering.

- [Client Bootstrap](https://github.com/kjj6198/build-your-own-x/blob/master/src/main.js): Svelte entry · Mounts the root application in the browser. · `src/main.js`
- [Root App](https://github.com/kjj6198/build-your-own-x/blob/master/src/App.svelte): Svelte component · Coordinates catalog navigation and presentation. · `src/App.svelte`
- [Navigation](https://github.com/kjj6198/build-your-own-x/blob/master/src/Navbar.svelte): Svelte component · Catalog section navigation controls. · `src/Navbar.svelte`
- [Catalog Content](https://github.com/kjj6198/build-your-own-x/blob/master/src/Content.svelte): Svelte component · Renders catalog categories and resource links. · `src/Content.svelte`
- [Scroll Anchors](https://github.com/kjj6198/build-your-own-x/blob/master/src/ScrollAnchor.svelte): Svelte component · Connects navigation targets to content sections. · `src/ScrollAnchor.svelte`
- [Global Styles](https://github.com/kjj6198/build-your-own-x/blob/master/public/global.css): CSS · `public/global.css`

### Build & Delivery

Node/Rollup static-site build boundary.

- [HTML Template](https://github.com/kjj6198/build-your-own-x/blob/master/public/index.ejs): EJS · Browser document and Svelte mount boundary. · `public/index.ejs`
- [Rollup Build](https://github.com/kjj6198/build-your-own-x/blob/master/rollup.config.js): Bundler config · Builds browser-consumable static assets. · `rollup.config.js`
- [Node Dependencies](https://github.com/kjj6198/build-your-own-x/blob/master/package.json): npm manifest · Defines build and application dependencies. · `package.json`
- **Static Site Assets**: Deployment artifact · HTML, bundled JavaScript, and CSS for static hosting.

### Other components

- **Browser**: Client runtime · Runs the local Svelte catalog UI.
- **External Learning Resources**: Third-party sites · Tutorial and project destinations linked by the catalog.

## Connections

- Resource Catalog → Catalog Model: catalog source
- Resource Catalog → Catalog Transform: catalog source
- Catalog Transform → Catalog Model: transforms
- Catalog Model → Catalog Content: catalog data
- Node Dependencies → Rollup Build: provides tooling
- Rollup Build → Client Bootstrap: bundles entry
- Rollup Build → HTML Template: builds for template
- Rollup Build → Static Site Assets: emits assets
- HTML Template → Static Site Assets: included HTML
- Global Styles → Static Site Assets: included styles
- Client Bootstrap → Root App: mounts
- HTML Template → Client Bootstrap: mount target
- Root App → Navigation: composes
- Root App → Catalog Content: composes
- Navigation → Scroll Anchors: selects targets
- Scroll Anchors → Catalog Content: scrolls sections
- Catalog Content → External Learning Resources: outbound links
- Static Site Assets → Browser: served as static files
- Browser → Root App: runs