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SHOWCASE DECK

Sunstone Presentation Engine

Declarative YAML slide generation, zero-inline-style semantic HTML, and Celestine SVG charts

Sol.vin Architecture Team

Core Engine & Slide Architecture

Native Crystal AOT Scoped Palettes 20 Semantic Layouts 📊 Celestine SVG Charts

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SECTION 01

Semantic Layout Architecture

Separating content structure from presentation styles

Zero Inline Styles

Strict semantic HTML governed exclusively by data-* attributes

CSS Pseudo Chrome

Window controls and track accents rendered via CSS ::before & ::after

Dynamic Palettes

Runtime theme cascading with per-slide CSS variable scopes

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AOT ENGINE • PERFORMANCE

AOT Compilation & Pipeline Velocity

Sub-50ms slide generation with zero Node.js runtime baggage

pipeline.cr — Native Shard Architecture

Crystal

# 1. Parse declarative deck manifest:
deck = Sunstone::Deck.from_yaml(File.read("deck.yml"))

# 2. Resolve layout renderer via static router:
renderer = Sunstone::LayoutRouter.resolve("stats")

# 3. Compile vector Celestine chart & theme CSS:
chart = Sunstone::Chart.sparkline(metrics, stroke: "#10b981")
html  = renderer.render_html(slide, deck, palette, 1, 20)

# 4. Emit zero-inline-style artifact:
File.write("dist/index.html", html)

Cold Slide Build Time (ms) LOWER IS BETTER

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ASYMMETRIC SPLIT

Fiber Scheduling & Event Loop Execution

Cooperative fiber work-stealing paired with low-overhead telemetry

scheduler.cr — Fiber Work-Stealing Engine

Crystal

module Sunstone::Runtime
  class FiberPool
    def initialize(@workers : Int32 = System.cpu_count)
      @queue = Channel(Proc(Void)).new(1024)
      @workers.times { spawn worker_loop }
    end

    private def worker_loop
      while job = @queue.receive?
        job.call
      end
    end

    def dispatch(&block : -> Void)
      @queue.send(block)
    end
  end
end

Multi-Threaded Fiber Work-Stealing ZERO GC PAUSE

Lightweight green threads allocate just 8KB initial stack frames
Fibers yield cooperatively upon socket buffer saturation
Work-stealing ring buffer guarantees zero thread starvation

Deterministic Memory Footprint < 18MB RSS

Zero-overhead non-blocking libevent event loop integration
Inlined LLVM native machine instructions across hot paths
Predictable execution latency regardless of deck scale

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ASYMMETRIC SPLIT

Compiler Pipeline & Live Verification

Declarative type inference constraints validating terminal outputs

Global Type Inference TYPE CHECK

Nil-safety enforced at compile time with zero annotations
Union types automatically narrowed within conditional branches
Exhaustive pattern matching guarantees complete case coverage

LLVM Native Codegen RELEASE -O3

Aggressive function inlining across layout renderers
Dead code elimination strips unused CSS & icons
Direct machine code generation produces single static binary

compiler_output.log — Release Verification

BASH

$ crystal build --release -o bin/sunstone src/sunstone.cr
[1/4] Parsing source tree and macro templates...  (120ms)
[2/4] Semantic analysis & type inference...       (310ms)
[3/4] LLVM IR generation & target pass: x86_64... (450ms)
[4/4] Linking native executable: bin/sunstone...  (180ms)

✓ Build complete: bin/sunstone (6.1 MB stripped)
✓ Zero inline style lint passed (33 layouts audited)
✓ Memory footprint verified: 14.2 MB cold start RSS

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ROW SPLIT

Memory Allocation & Zero-Copy Subsystems

Heap minimization across high-frequency packet processing pipelines

buffer_pool.cr — Direct Slice Ingestion

Zero-Alloc

# Ingest network payload directly into static ring buffer slice:
def process_frame(io : IO, buffer : Bytes) : Header
  bytes_read = io.read_fully?(buffer) || raise "Truncated frame stream"
  # Zero-copy header interpretation via pointer reinterpretation:
  header = buffer[0, 16].to_unsafe.as(Pointer(Header)).value
  header.validate!
  header
end

Stack Allocation Bounds STACK FIRST

Primitive structures allocate entirely within stack boundaries
Escape analysis identifies non-escaping allocations automatically
Eliminates GC tracking overhead for temporary parser objects

Buffer Pool Recycling RING POOL

Pre-allocated 64KB slabs eliminate heap reallocation churn
Thread-safe pointer rotation across concurrent fiber queues
Zero-fragmentation guarantees sustained long-running stability

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ROW SPLIT

Architectural Trade-Offs & Unified Synthesis

Balancing compile-time guarantees against runtime operational velocity

Static Systems Paradigm PROS

Exhaustive type checking catches defects before deployment
Bare-metal performance matches C and C++ execution speed
Self-contained binaries simplify containerization & orchestration

Interpreted Systems Burden CONS

Massive node_modules dependencies (often 400MB+ for simple decks)
Runtime type errors escape to production presentations
High cold-start latency hampers live interactive previewing

Sunstone Production Guarantee SYNTHESIS

Single 6MB native binary compiles slide decks in under 50ms with zero runtime dependencies

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ASYMMETRIC STACK

HTTP Server Kernel & Triple Invariants

Non-blocking connection handlers guarded by invariant checkpoints

http_server.cr — Epoll Server Kernel

Core

server = HTTP::Server.new([
  HTTP::LogHandler.new,
  HTTP::CompressHandler.new,
  Sunstone::SlideHandler.new
]) do |ctx|
  ctx.response.content_type = "text/html; charset=utf-8"
  ctx.response.headers["Cache-Control"] = "no-cache"
  ctx.response.print Sunstone::Generator.render_live
end

address = server.bind_tcp("127.0.0.1", 8080)
puts "Sunstone preview listening on http://#{address}"
server.listen

1. Non-Blocking Ingestion EPOLL

Kernel epoll dispatches socket readiness directly to sleeping fibers

2. Zero-Copy Compression GZIP

Streaming deflate compression executes inline without heap buffers

3. Live Hot-Reload Loop WEBSOCKET

Instant delta broadcasts refresh presentation state in < 15ms

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ASYMMETRIC STACK

Core Engine Tenets & Benchmark Verification

Three design philosophies backed by real-time execution telemetry

1. Zero Inline Styles SEMANTIC

Layouts governed purely by semantic classes & data attributes

2. Scoped CSS Palettes ISOLATION

Per-slide palette scoping prevents specificity cascading bugs

3. Git-Friendly Diffs VERSIONED

Pure human-readable YAML slide definitions reviewable in PRs

benchmark_runner.sh — Automated Test Rig

BASH

# Hyperfine benchmark: 100-slide presentation build comparison
$ hyperfine --warmup 3 \
    'sunstone build --deck deck.yml' \
    'marp --html deck.md -o dist/index.html' \
    'npx @slidev/cli build'

Benchmark 1: sunstone build --deck deck.yml
  Time (mean ± σ):      41.8 ms ±   2.1 ms    [User: 28.4 ms, System: 12.1 ms]
  Range (min … max):    38.2 ms …  46.4 ms    100 runs

Benchmark 2: marp --html deck.md
  Time (mean ± σ):     382.4 ms ±  14.2 ms    [9.1x slower than Sunstone]

Benchmark 3: npx @slidev/cli build
  Time (mean ± σ):    2840.1 ms ± 110.5 ms    [67.9x slower than Sunstone]

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LAYOUT: COMPARISON CODE VIEW

Imperative vs Declarative Slides

Two-step progressive disclosure: raw code first, then critique analysis

Imperative HTML Strings

HTML

<div style="display:flex;background:#111;padding:12px;">
  <h2 style="font-size:24px;color:#38bdf8;">Title</h2>
  <p style="margin:0;color:#aaa;">Subtitle</p>
</div>

Sunstone Semantic YAML

YAML

id: "overview"
layout: "intro"
badge: "MODULAR"
title: "Title"
subtitle: "Subtitle"
palette: "slate_dark"

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LAYOUT: COMPARISON ANALYSIS

Imperative vs Declarative Slides

Two-step progressive disclosure: raw code first, then critique analysis

Imperative HTML Strings ANTI-PATTERN

Hardcoded inline style tags everywhere
Zero reusability across slides or themes
High cognitive overhead in git diffs

Sunstone Semantic YAML CLEAN SOLUTION

Clean, human-readable data definitions
Palette switching is automatic and decoupled
Predictable, strictly semantic HTML output

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LAYOUT: THREE-COLUMN

Tri-Pillar Analysis

Three equal cards or code snippets side by side

1. Declarative YAML INPUT

Human-authored slide decks
Git-friendly line-by-line diffs
Zero markup boilerplate
Clean speaker notes integration

2. Crystal Engine PROCESS

Blazing-fast native execution
Strong type validation
Zero runtime dependencies
Sub-300ms compile latency

3. Semantic HTML & CSS OUTPUT

Zero inline style attributes
Theme-scoped CSS variables
Clean Reveal.js presentations
Accessible semantic HTML5 markup

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LAYOUT: FOUR-COLUMN

Four Architectural Tiers

Compact quadrant or multi-column layout for comprehensive overviews

CLI / UX TIER 1

Opal command DSL & flag parser
Interactive terminal UI elements
Local HTTP live preview server
OS-native browser launch sync

Parser & Router TIER 2

Type-safe YAML deserializer
15 semantic spatial layout targets
Dynamic theme & palette resolver
Slide metadata & speaker note router

Compiler TIER 3

Zero-inline HTML generator
CSS pseudo-element chrome engine
High-performance asset bundler
Standalone self-contained binary

Runtime TIER 4

Reveal.js orchestrator & transitions
Asciinema player integration
Theme-scoped CSS variable cascades
Dual-screen presenter display mode

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LAYOUT: FEATURE-GRID

Compiler Pipeline & Optimization Passes

Asymmetrical Bento Grid showcasing primary engine capabilities

Multi-Pass AST Optimization Engine CORE ENGINE

AST.optimize(nodes) do |pass|
  pass.inline_constants!
  pass.fold_pure_expressions!
  pass.prune_dead_branches!
end

High-throughput static tree transformation reducing code size and instruction count.

Global Type Inference TYPES

Bidirectional algorithm avoids explicit annotations
Flow-sensitive nil-checking eliminates runtime panics
Generic union types with zero memory overhead

LLVM 18 Backend CODEGEN

ThinLTO cross-module aggressive inlining
Automatic SIMD vector loop unrolling
Target-specific machine code optimization

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LAYOUT: TIMELINE

Project Evolution Roadmap

Horizontal milestone rail with status indicators and delivery phases

Q1 2026

Q2 2026

Q3 2026

Q4 2026

v0.1 Genesis COMPLETED

Extract engine from prototype
15 semantic layouts
Zero inline style constraint

v0.2 Tooling ACTIVE

Opal CLI integration
Live HTTP preview server
Theme-scoped palettes

v0.3 Ecosystem PLANNED

Jasper docs compiler
Carbon doctor and badges
GitHub Pages automated CI

v1.0 Release FUTURE

Community theme registry
PDF / PNG export pipeline
Interactive terminal plugins

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TIMELINE

Sunstone Evolution & Release Milestones

Chronological engineering progress from initial prototype to universal presentation engine

v0.1.0

Prototype & Zero-Inline Standard FOUNDATION

Established the strict zero-inline-styles standard and YAML-to-Reveal compilation pipeline.

Eliminated HTML blobs in favor of clean semantic classes
Sub-50ms native compilation verified with Crystal compiler

v0.1.8

Theme Scoping & Scaffolding Engine THEMES

Added 6 production themes with companion JSON palettes and Opal CLI commands.

Per-slide palette switching with CSS custom properties
Added new-theme and add-slide CLI scaffolding generators

v0.1.18

Vector Charts & Gallery Deployment ECOSYSTEM

Integrated Celestine SVG vector sparklines and multi-theme live landing previewer.

Direct SVG rendering without external JavaScript dependencies
One-click automated GitHub Actions Pages deployment

v0.2.0

33-Layout Engine & Keynote Suite CURRENT GA

Expanded layout catalog to 33 distinct layouts covering timelines, calendars, and artistic editorial slides.

Full coverage across stacking, Gantt roadmaps, and circular flywheels
Zero inline style verification integrated into automated test suite

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GANTT ROADMAP

2026 Systems Engineering Roadmap

Cross-stream feature delivery schedule spanning quarterly milestones

TRACK / STREAM

Q1 2026

Q2 2026

Q3 2026

Q4 2026

Core Compiler BACKEND

Zero-Alloc Parser SHIPPED

LLVM AOT Pipeline ACTIVE

Layout Engine FRONTEND

Stacking Family (1L-2R) DONE

Timelines & Calendars CURRENT

Artistic Keynote Suite PLANNED

Developer Tooling TOOLING

Live HTTP Preview Engine GA

LSP Syntax Diagnostics IN DEV

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CALENDAR

Release Sprint & Delivery Calendar

October 2026 milestone schedule with color-coded operational events

OCTOBER 2026

Releases Code Freezes Conferences Audits

MON

TUE

WED

THU

FRI

SAT

SUN

28

29

30

1

2

Feature Freeze FREEZE

3

4

5

6

7

8

v0.2.0 RC1 Tag RC1

9

10

11

12

13

14

15

Keynote Demo Day LIVE

16

17

18

19

20

21

22

Security Audit AUDIT

23

24

25

26

27

28

29

v0.2.0 GA Release GA

30

31

1

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SUMMIT AGENDA

Systems Engineering Summit 2026

Three-day technical conference schedule across architecture, systems, and deployment tracks

Day 1 • Architecture OCT 14

09:00 - 10:30 Main Auditorium KEYNOTE

Keynote: Zero Inline Styles

Alex Rivera, Chief Architect

Why semantic HTML and theme-scoped CSS variables beat messy presentation blobs.

11:00 - 12:30 Hall A DEEP DIVE

Compiler Pipeline Deep Dive

Elena Chen, Compiler Team

Macro metaprogramming and static layout resolution techniques.

Day 2 • Systems & Tooling OCT 15

09:30 - 11:00 Main Auditorium SYSTEMS

Sub-50ms Preview Servers

Marcus Vance, Infrastructure

Zero-dependency HTTP server engineering with instant browser reload hooks.

13:30 - 15:00 Room 102 WORKSHOP

Vector Chart Generation

Sarah Jenkins, Design Systems

Rendering SVG sparklines without client-side JavaScript charting libraries.

Day 3 • Production & CI OCT 16

10:00 - 11:30 Main Auditorium DEVOPS

Automated Pages CI/CD

David Kim, Release Engineering

End-to-end GitHub Actions publishing with multi-theme gallery compilation.

14:00 - 15:30 Grand Hall PANEL

Keynote: Future of Slides

Executive Panel

The roadmap towards Sunstone v1.0 and interactive 3D WebGL canvases.

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LAYOUT: PROCESS-FLOW

End-to-End Pipeline & Distribution

Four-stage sequential workflow with directional chevrons

01 INPUT

Author YAML

Write high-signal presentation content in declarative, readable YAML slides.

02 TRANSFORM

Parse & Validate

Strict schema verification ensures every slide satisfies layout constraints.

03 RENDER

Generate HTML

Emit zero-inline-style semantic markup paired with theme-scoped palettes.

04 RELEASE

Deploy Static

Instant static deployment to GitHub Pages or static web servers with zero npm deps.

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ARTISTIC • FLYWHEEL

Continuous Compiler Optimization Flywheel

Iterative feedback loop driving sub-50ms slide generation latency

COMPILER CORE OPTIMIZATION FLYWHEEL Zero-Overhead Feedback Loop

01 Streaming Ingestion YAML

Single-pass parser transforms slide definitions directly into typed AST nodes.

Zero intermediate JSON overhead

02 Static Routing ROUTER

Singleton layout instances resolve slide geometries with zero memory allocation.

Constant-time O(1) resolution

03 Theme Scoping PALETTE

Per-slide palette variables are mapped dynamically to semantic CSS custom properties.

Strict style isolation per slide

04 Semantic Emission EMITTER

Produces pristine Reveal.js HTML and Markdown notes without any inline styles.

100% test-verified cleanliness

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ARTISTIC • EDITORIAL

Architectural Manifesto & Semantic Purity

Why slide presentations should be engineered with the same rigor as production code

01

Separation of Concerns is Non-Negotiable

“When slide structure is entangled with inline styles, engineering teams lose the ability to review and version presentations like code.”

— The Sunstone Architecture Manifesto

Pristine Semantic Markup PRINCIPLE

HTML defines the meaning and hierarchy of the presentation; CSS governs layout, geometry, and visual expression.

Every layout verified for zero inline styling attributes
Clean DOM trees render with lightning speed on any device

Theme & Palette Decoupling ERGONOMICS

Swap brand palettes or visual styles across thousands of slides without touching a single YAML content file.

Theme-scoped CSS custom properties
One-line scaffold for custom corporate designs

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ARTISTIC • CONVERGENCE

The Tri-Pillar Convergence

Where bare-metal speed, static type safety, and developer ergonomics meet

Bare-Metal Speed LLVM AOT

Direct machine code generation produces sub-50ms slide compilation.

Zero Node.js dependency overhead
Instant cold start & live preview

Static Type Safety NIL SAFETY

Compile-time guarantees audit slide schemas and layout constraints.

Deterministic layout resolution
No runtime TypeError surprises

Developer Ergonomics HUMAN FIRST

Clean YAML authoring and intuitive Opal CLI scaffolding workflows.

Git-friendly PR review diffs
Automated GitHub Pages publishing

▼

Sunstone: The Modern Slide Presentation Engine THE SYNTHESIS

Combining high-performance systems engineering with elegant, responsive semantic presentations.

33 Semantic Layouts 6 Production Themes Strict Zero-Inline-Styles Self-Contained 6MB Binary

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LAYOUT: ARCHITECTURE

Multi-Tier Sunstone Engine

Structured technology layers with CSS pseudo-element flow indicators

Presentation Layer Client Browser FRONTEND

Reveal.js

Deck orchestration & transitions

Highlight.js

Syntax highlighting engine

Theme CSS

Strict zero-inline styles

Compiler Layer Native Crystal Pipeline CORE

YAML Parser

Type-safe deck loading

Layout Router

15 semantic renderers

Assets Manager

Embedded vendor & themes

Tooling & Infrastructure Ecosystem Shards ECOSYSTEM

Opal CLI

Terminal DSL & live server

Jasper Docs

Multi-track guide compiler

Carbon Engine

Changelog, doctor & badges

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LAYOUT: MEDIA

Rich Media & Visual Assets

High-resolution imagery, video streams, and Asciinema terminal recordings

Natural Sunstone Feldspar Specimen

COMMONS CC-BY-SA

Mineralogy: A translucent plagioclase feldspar displaying radiant aventurescence, the optical namesake of Sunstone.

Media Engine Capabilities ZERO-BLOAT

Remote & Local Images: Supports high-res WebP, PNG, JPEG, and SVG vector illustrations with responsive fitting.
Wikimedia Commons Integration: Direct hotlinking to CC0 and open-licensed scientific diagrams and photography.
Terminal Cast Replays: Native Asciinema player embedding with interactive play, pause, seek, and auto-focus sync.
Video Streams: HTML5 video playback with hardware-accelerated H.264/MP4 and WebM decoders.
Window Chrome: macOS-style window header dots, titlebar labels, tag pills, and integrated quote captions.

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LAYOUT: PROFILE

Presenter Profile & Credentials

Speaker biography, key career metrics, and core areas of focus

15+ Years in Systems

500k+ Lines of Crystal

100% Type Safety

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LAYOUT: DUAL-MODE

Execution Mode Comparison

Interactive side-by-side mode evaluation with tabular specs

Local Live Preview DEVELOPMENT

sunstone serve --port 8000

Startup Time < 50ms

Port Hunting Automatic 8000..8020

Browser Launch OS Native

Dev Server Built-in Crystal HTTP

Instant feedback loop with hot asset recompilation and browser synchronization.

Production Static Build CI / CD

sunstone build --out dist

Output Size < 1.5MB total

Zero Dependencies Pure HTML/CSS/JS

Deployment GitHub Actions CI

Build Velocity < 300ms Compile

Single deterministic distribution directory ready for GitHub Pages or CDN.

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LAYOUT: MATRIX

Presentation Engine Comparison

Evaluating architectures across styling, ergonomics, and reproducibility

Feature	Traditional Slideware	Marp / Markdown	Sunstone
Inline Styles	Pervasive inline CSS & absolute coords	Limited styling / inline