shimmy 2.0.1

Lightweight Ollama-compatible inference server with native SafeTensors support. No Python dependencies, cross-platform WebGPU acceleration via Airframe.
Documentation

The Lightweight OpenAI API Server

๐Ÿ”’ Local Inference Without Dependencies ๐Ÿš€

License: MIT Security Crates.io Downloads Rust GitHub Stars

๐Ÿ’ Sponsor this project

Languages: ็ฎ€ไฝ“ไธญๆ–‡ ยท ็น้ซ”ไธญๆ–‡

Shimmy will be free forever. No asterisks. No "free for now." No pivot to paid.

๐Ÿ’ Support Shimmy's Growth

๐Ÿš€ If Shimmy helps you, consider sponsoring โ€” 100% of support goes to keeping it free forever.

  • $5/month: Coffee tier โ˜• - Eternal gratitude + sponsor badge
  • $25/month: Bug prioritizer ๐Ÿ› - Priority support + name in SPONSORS.md
  • $100/month: Corporate backer ๐Ÿข - Logo placement + monthly office hours
  • $500/month: Infrastructure partner ๐Ÿš€ - Direct support + roadmap input

๐ŸŽฏ Become a Sponsor | See our amazing sponsors ๐Ÿ™


Table of Contents


Drop-in OpenAI API Replacement for Local LLMs

Shimmy is a single-binary that provides 100% OpenAI-compatible endpoints for GGUF models. Point your existing AI tools to Shimmy and they just work โ€” locally, privately, and free.

๐ŸŽ‰ NEW in v2.0.0: Shimmy now runs on Airframe, a pure-Rust WGSL GPU engine. No C++ toolchain, no backend flags, no compilation required.

๐Ÿ”ฅ Airframe Engine

Starting in v2.0.0, Shimmy's default inference engine is Airframe โ€” a pure-Rust WebGPU (WGSL) transformer runtime built from scratch.

Why this matters:

  • No C++ toolchain required โ€” Rust only, top to bottom
  • F32 precision throughout for deterministic, high-quality output
  • WGSL compute shaders work on any GPU via WebGPU (NVIDIA, AMD, Intel, integrated)
  • Model spec auto-derived from GGUF metadata โ€” no hardcoded per-model constants
  • YaRN RoPE scaling for extended context via SHIMMY_MAX_CTX โ€” engine allocates KV cache and sets RoPE scale automatically (see Extended Context below)

Quick start with Airframe (v2.0.0+):

# Default: 2048-token context

SHIMMY_BASE_GGUF=/path/to/TinyLlama-1.1B-Chat-v1.0.Q4_0.gguf ./shimmy serve


# Extended context (4096 tokens โ€” YaRN RoPE enabled automatically, KV cache resized)

SHIMMY_BASE_GGUF=/path/to/model.gguf SHIMMY_MAX_CTX=4096 ./shimmy serve

๐ŸŽฏ Supported Models

Airframe v2.0 ships with GPU-verified support across 7 model architectures and 5 quantization types, covering the models most commonly run on consumer hardware. Context window is read directly from each model's GGUF metadata โ€” no hardcoded limits.

โœ… Locally Validated (GPU Math Verified)

Model Architecture Quant Size Context Min VRAM
TinyLlama-1.1B-Chat-v1.0 Llama Q4_0 638 MB 2048 ~800 MB
Llama-3.2-1B-Instruct Llama Q4_K_M 770 MB 131072* ~1 GB
Llama-3.2-3B-Instruct Llama Q4_K_M 1.9 GB 131072* ~2.5 GB
phi-2 Phi-2 Q4_K_M 1.7 GB 2048 ~2.2 GB
gemma-2-2b-it Gemma-2 Q4_K_M 1.6 GB 8192 ~2 GB
starcoder2-3b StarCoder2 Q4_K_M 1.8 GB 16384 ~2.3 GB
gpt2 GPT-2 Q4_K_M 107 MB 1024 ~200 MB

* Llama-3.2's native context is 131072 tokens. Airframe reads this from GGUF and allocates KV cache accordingly. Use SHIMMY_MAX_CTX=8192 for a practical 8K window on consumer hardware (~256 MB KV cache for the 1B model).

GPU Math Verified means the Airframe GPU dequantization shader produces results matching the CPU reference implementation, independently confirmed for every tensor type in each model. This is done via quant_verify, which tests 512 elements per quantization type per model.

โณ Roadmap โ€” Larger Models (Require โ‰ฅ16 GB VRAM)

Model Architecture Quant Size Status
deepseek-coder-6.7b-instruct Llama Q4_K_M 3.9 GB Pending remote GPU validation
deepseek-llm-7b-chat Llama Q4_K_M 4.0 GB Pending remote GPU validation
qwen2-7b-instruct Qwen2 Q4_K_M 4.5 GB Pending remote GPU validation
Phi-3.5-mini-instruct Phi-3 Q4_K_M 2.3 GB Requires fused QKV support (planned)

โœ… Supported Quantization Types

Type GGML ID Notes
F32 0 Raw floats โ€” maximum precision
F16 1 Half-precision floats
Q4_0 2 4-bit, 32-element blocks
Q8_0 8 8-bit, 32-element blocks
Q4_K 12 4-bit K-quant superblocks (256 elements) โ€” used in Q4_K_M GGUFs
Q5_K 13 5-bit K-quant superblocks โ€” used alongside Q4_K in mixed-precision models
Q6_K 14 6-bit K-quant superblocks โ€” typically used for output/embedding layers

All types are implemented in both the GPU inference shader and a CPU reference implementation. GPU vs CPU agreement is validated for every type.

Auto-discovery is enabled. If Shimmy finds GGUF models in your HuggingFace cache, Ollama directory, LM Studio cache (~/.cache/lm-studio/models), or local ./models/ folder, it will register and serve them automatically. See docs/MODEL_EXPANSION.md for the full compatibility matrix.

๐Ÿ“ฆ Migrating from v1.x

The llama.cpp backend is removed in v2.0.0. The Airframe engine is the only inference path. See docs/MIGRATION_v2.md for the step-by-step migration guide.

Developer Tools

Whether you're forking Shimmy or integrating it as a service, we provide complete documentation and integration templates.

Try it in 30 seconds

# 1) Download pre-built binary

# Windows:

curl -L https://github.com/Michael-A-Kuykendall/shimmy/releases/latest/download/shimmy-windows-x86_64.exe -o shimmy.exe

set SHIMMY_BASE_GGUF=C:\path\to\model.gguf && ./shimmy.exe serve &

# Linux / macOS:

curl -L https://github.com/Michael-A-Kuykendall/shimmy/releases/latest/download/shimmy-linux-x86_64 -o shimmy && chmod +x shimmy

SHIMMY_BASE_GGUF=/path/to/model.gguf ./shimmy serve &

# 2) See registered models

./shimmy list


# 3) Smoke test the OpenAI API

curl -s http://127.0.0.1:11435/v1/chat/completions \

  -H 'Content-Type: application/json' \

  -d '{
        "model":"tinyllama-1.1b",
        "messages":[{"role":"user","content":"Say hi in 5 words."}],
        "max_tokens":32
      }' | jq -r '.choices[0].message.content'

๐Ÿš€ Compatible with OpenAI SDKs and Tools

No code changes needed - just change the API endpoint:

  • Any OpenAI client: Python, Node.js, curl, etc.
  • Development applications: Compatible with standard SDKs
  • VSCode Extensions: Point to http://localhost:11435
  • Cursor Editor: Built-in OpenAI compatibility
  • Continue.dev: Drop-in model provider

Use with OpenAI SDKs

  • Node.js (openai v4)
import OpenAI from "openai";

const openai = new OpenAI({
  baseURL: "http://127.0.0.1:11435/v1",
  apiKey: "sk-local", // placeholder, Shimmy ignores it
});

const resp = await openai.chat.completions.create({
  model: "REPLACE_WITH_MODEL",
  messages: [{ role: "user", content: "Say hi in 5 words." }],
  max_tokens: 32,
});

console.log(resp.choices[0].message?.content);
  • Python (openai>=1.0.0)
from openai import OpenAI

client = OpenAI(base_url="http://127.0.0.1:11435/v1", api_key="sk-local")

resp = client.chat.completions.create(
    model="REPLACE_WITH_MODEL",
    messages=[{"role": "user", "content": "Say hi in 5 words."}],
    max_tokens=32,
)

print(resp.choices[0].message.content)

โšก Zero Configuration Required

  • Automatically finds models from Hugging Face cache, Ollama, LM Studio (~/.cache/lm-studio/models), and local dirs
  • Auto-allocates ports to avoid conflicts
  • Auto-detects LoRA adapters for specialized models
  • Just works - no config files, no setup wizards

๐Ÿง  Advanced MOE (Mixture of Experts) Support

Note: MoE (Mixture of Experts) CPU offloading is on the Airframe roadmap. See docs/AIRFRAME_MOE_ROADMAP.md for the implementation plan.

Run 70B+ models on consumer hardware โ€” coming to the Airframe engine. Track progress on the roadmap.

Perfect for: Large models (70B+), limited VRAM systems, cost-effective inference

๐ŸŽฏ Perfect for Local Development

  • Privacy: Your code never leaves your machine
  • Cost: No API keys, no per-token billing
  • Speed: Local inference, sub-second responses
  • Reliability: No rate limits, no downtime

Quick Start (30 seconds)

Installation

v2.0.0: Download pre-built binaries with Airframe WebGPU engine included!

๐Ÿ“ฅ Pre-Built Binaries (Recommended โ€” Zero Dependencies)

Pick your platform and download โ€” no compilation needed, GPU acceleration included:

# Windows x64 (Airframe WebGPU engine)

curl -L https://github.com/Michael-A-Kuykendall/shimmy/releases/latest/download/shimmy-windows-x86_64.exe -o shimmy.exe


# Linux x86_64 (Airframe WebGPU engine)

curl -L https://github.com/Michael-A-Kuykendall/shimmy/releases/latest/download/shimmy-linux-x86_64 -o shimmy && chmod +x shimmy


# macOS ARM64 (Airframe with Metal backend via wgpu)

curl -L https://github.com/Michael-A-Kuykendall/shimmy/releases/latest/download/shimmy-macos-arm64 -o shimmy && chmod +x shimmy


# macOS Intel

curl -L https://github.com/Michael-A-Kuykendall/shimmy/releases/latest/download/shimmy-macos-intel -o shimmy && chmod +x shimmy


# Linux ARM64 (huggingface engine; Airframe cross-compilation not yet supported)

curl -L https://github.com/Michael-A-Kuykendall/shimmy/releases/latest/download/shimmy-linux-aarch64 -o shimmy && chmod +x shimmy

That's it! The Airframe WebGPU adapter is selected automatically at runtime.

๐Ÿ› ๏ธ Build from Source / cargo install

# Install from crates.io

cargo install shimmy


# Build from source (huggingface engine, no GPU)

git clone https://github.com/Michael-A-Kuykendall/shimmy

cd shimmy

cargo build --release

Note: The Airframe GPU engine is a private dependency and cannot be built from source by public users. The pre-built release binaries already include Airframe compiled in โ€” download those to get full GPU acceleration. cargo install shimmy installs the huggingface engine variant from crates.io.

GPU Acceleration

v2.0.0: Airframe uses WebGPU (wgpu) for GPU acceleration. No backend flags, no driver installation beyond standard OS graphics drivers.

๐Ÿ“ฅ Download Pre-Built Binaries (Recommended)

Release binaries include the Airframe engine with WebGPU support compiled in:

Platform Download GPU Backend Notes
Windows x64 shimmy-windows-x86_64.exe WebGPU (wgpu) NVIDIA, AMD, Intel
Linux x86_64 shimmy-linux-x86_64 WebGPU (wgpu) NVIDIA, AMD, Intel
macOS ARM64 shimmy-macos-arm64 Metal (via wgpu) Apple Silicon
macOS Intel shimmy-macos-intel Metal (via wgpu) Intel Mac
Linux ARM64 shimmy-linux-aarch64 huggingface only ARM cross-build

๐ŸŽฏ How GPU Selection Works

Airframe uses wgpu's adapter enumeration. On first launch it selects the best available GPU adapter for your system โ€” discrete GPU preferred over integrated, integrated over CPU fallback. No configuration needed.

# Check selected adapter

shimmy gpu-info


# Start serving (GPU adapter auto-selected)

shimmy serve

๐Ÿ”ง Extended Context

SHIMMY_MAX_CTX overrides the context window at the engine level. When set above the model's native window, Airframe automatically engages YaRN RoPE scaling and resizes the KV cache accordingly.

# 4096-token context with YaRN (2x native window for TinyLlama)

SHIMMY_BASE_GGUF=/path/to/model.gguf SHIMMY_MAX_CTX=4096 shimmy serve


# 8192 tokens (4x native, higher RoPE compression)

SHIMMY_BASE_GGUF=/path/to/model.gguf SHIMMY_MAX_CTX=8192 shimmy serve

Note: Extended context beyond 4096 is functional but not yet as deeply validated as the native 2048-token window. Accepted range is 512โ€“131072. Values outside that range are silently ignored and 2048 is used.

๐Ÿ’พ VRAM Sizing Reference

Airframe allocates VRAM at load time: weights + KV cache. The KV cache is F32 and scales linearly with context length (n_layers ร— n_kv_heads ร— head_dim ร— ctx ร— 2 ร— 4 bytes).

TinyLlama 1.1B Q4_0 โ€” the v2.0 validated path:

Context (SHIMMY_MAX_CTX) KV cache Weights Total Min VRAM
2048 (default) ~88 MB ~638 MB ~726 MB ~800 MB
4096 ~176 MB ~638 MB ~814 MB ~900 MB
8192 ~352 MB ~638 MB ~990 MB ~1.1 GB
16384 ~704 MB ~638 MB ~1.3 GB ~1.5 GB

Integrated graphics (Intel Iris, Apple M-series unified memory, AMD Vega) running at 2048 context is ~800 MB โ€” comfortably inside the 2 GB allocation most integrated GPUs share with system RAM.

Scaling up to larger models (architecture and quant support required โ€” see docs/MODEL_EXPANSION.md):

Model Quant Weights KV @ 2048 ctx Min VRAM
Llama 3.2 1B Q4_0 ~636 MB ~128 MB ~900 MB
Llama 3.2 3B Q4_0 ~1.9 GB ~448 MB ~2.5 GB
Mistral 7B Q4_K_M ~4.1 GB ~512 MB ~5 GB
Llama 3 8B Q4_K_M ~4.7 GB ~512 MB ~5.5 GB

The KV cache formula for any model: n_layers ร— n_kv_heads ร— head_dim ร— ctx ร— 2 ร— 4 bytes. Multiply the 2048 baseline by your SHIMMY_MAX_CTX multiplier to get the extended context allocation.

Get Models

Shimmy auto-discovers models from:

  • Hugging Face cache: ~/.cache/huggingface/hub/
  • Ollama models: ~/.ollama/models/
  • Local directory: ./models/
  • Environment: SHIMMY_BASE_GGUF=path/to/model.gguf
# Primary validated model for Airframe v2.0

huggingface-cli download TheBloke/TinyLlama-1.1B-Chat-v1.0-GGUF \

  --include "tinyllama-1.1b-chat-v1.0.Q4_0.gguf" --local-dir ./models/


# Alternative 1B โ€” also fits in the same hardware envelope

huggingface-cli download bartowski/Llama-3.2-1B-Instruct-GGUF \

  --include "*Q4_K_M*" --local-dir ./models/

Start Server

# Auto-allocates port to avoid conflicts

shimmy serve


# Or use manual port

shimmy serve --bind 127.0.0.1:11435

Point your development tools to the displayed port โ€” VSCode Copilot, Cursor, Continue.dev all work instantly.

๐Ÿ“ฆ Download & Install

Package Managers

  • Rust: cargo install shimmy (installs huggingface engine; for Airframe GPU, use GitHub Releases binaries)
  • VS Code: Shimmy Extension
  • npm: npm install -g shimmy-js (planned)
  • Python: pip install shimmy (planned)

Direct Downloads

  • GitHub Releases: Latest binaries
  • Docker: docker pull shimmy/shimmy:latest (coming soon)

๐ŸŽ macOS Support

Full compatibility confirmed! Shimmy works on macOS with Metal GPU acceleration via wgpu.

# Install from crates.io (huggingface engine)

cargo install shimmy


# For Airframe GPU engine, download the macOS binary from GitHub Releases:

curl -L https://github.com/Michael-A-Kuykendall/shimmy/releases/latest/download/shimmy-macos-arm64 -o shimmy && chmod +x shimmy

โœ… Verified working:

  • Intel and Apple Silicon Macs
  • Metal GPU acceleration via wgpu (automatic on Apple Silicon)
  • Xcode 17+ compatibility

Integration Examples

VSCode Copilot

{
  "github.copilot.advanced": {
    "serverUrl": "http://localhost:11435"
  }
}

Continue.dev

{
  "models": [{
    "title": "Local Shimmy",
    "provider": "openai",
    "model": "your-model-name",
    "apiBase": "http://localhost:11435/v1"
  }]
}

Cursor IDE

Works out of the box - just point to http://localhost:11435/v1

Why Shimmy Will Always Be Free

I built Shimmy to retain privacy-first control on my AI development and keep things local and lean.

This is my commitment: Shimmy stays MIT licensed, forever. If you want to support development, sponsor it. If you don't, just build something cool with it.

๐Ÿ’ก Shimmy saves you time and money. If it's useful, consider sponsoring for $5/month โ€” less than your Netflix subscription, infinitely more useful for developers.

API Reference

Endpoints

  • GET /health - Health check
  • POST /v1/chat/completions - OpenAI-compatible chat (streaming supported)
  • POST /v1/completions - OpenAI-compatible text completions
  • GET /v1/models - List available models
  • POST /api/generate - Shimmy native API
  • GET /ws/generate - WebSocket streaming

Environment Variables

Variable Default Description
SHIMMY_BASE_GGUF (auto-discover) Path to GGUF model file loaded as the default model
SHIMMY_PORT 8080 Port to listen on (Airframe server binary)
SHIMMY_BIND_ADDRESS 0.0.0.0:8080 Full bind address (overrides port)
SHIMMY_MAX_CTX (from GGUF) Override context window; activates YaRN RoPE scaling when above model native
SHIMMY_MODEL_PATHS (see Zero Config) Colon-separated extra model search paths
SHIMMY_ENGINE_BACKEND airframe airframe (default) or llama (legacy path)
SHIMMY_ROPE_SCALE (auto) Override computed YaRN scale factor
RUST_BACKTRACE (off) Set to 1 to print crash backtraces

CLI Commands

shimmy serve                              # Start server (auto port allocation)

shimmy serve --bind 127.0.0.1:8080        # Manual port binding

shimmy serve --gpu-backend auto           # WebGPU adapter auto-select (default)

shimmy serve --gpu-backend cpu            # Force CPU (disable GPU)

shimmy list                               # Show available models

shimmy discover                           # Refresh model discovery

shimmy generate --name X --prompt "Hi"   # Test generation

shimmy probe model-name                   # Verify model loads

shimmy gpu-info                           # Show selected WebGPU adapter

Technical Architecture

  • Rust + Tokio: Memory-safe, async performance
  • Airframe engine: Pure-Rust WGSL GPU inference โ€” no C++ toolchain, deterministic output, GGUF-native
  • OpenAI API compatibility: Drop-in replacement
  • Dynamic port management: Zero conflicts, auto-allocation
  • Zero-config auto-discovery: Just worksโ„ข

๐Ÿš€ Advanced Features

  • ๐Ÿง  MOE CPU Offloading: Hybrid GPU/CPU processing for large models (70B+)
  • ๐ŸŽฏ Smart Model Filtering: Automatically excludes non-language models (Stable Diffusion, Whisper, CLIP)
  • ๐Ÿ›ก๏ธ 6-Gate Release Validation: Constitutional quality limits ensure reliability
  • โšก Smart Model Preloading: Background loading with usage tracking for instant model switching
  • ๐Ÿ’พ Response Caching: LRU + TTL cache delivering 20-40% performance gains on repeat queries
  • ๐Ÿš€ Integration Templates: One-command deployment for Docker, Kubernetes, Railway, Fly.io, FastAPI, Express
  • ๐Ÿ”„ Request Routing: Multi-instance support with health checking and load balancing
  • ๐Ÿ“Š Advanced Observability: Real-time metrics with self-optimization and Prometheus integration
  • ๐Ÿ”— RustChain Integration: Universal workflow transpilation with workflow orchestration

โ“ FAQ

Does Shimmy work on my GPU? Shimmy uses WebGPU (via the Airframe engine) which runs on Vulkan, D3D12, and Metal โ€” covering NVIDIA, AMD, Intel, and Apple Silicon. No CUDA required. See GPU requirements in TROUBLESHOOTING.md if you hit adapter errors.

What's the difference between Shimmy and llama.cpp / Ollama? Shimmy is written in pure Rust with no C++ toolchain dependency. The Airframe engine runs WGSL compute shaders compiled at startup โ€” no pre-built binaries, no driver version pinning. The result is faster startup, lower memory overhead, and deterministic output. See the GPU Pipeline doc for internals.

Why do I need SHIMMY_BASE_GGUF or LIBSHIMMY_MODEL_PATH? If you don't set these, Shimmy auto-discovers models in standard directories (~/.cache/huggingface, ~/.ollama, ~/lm-studio/models, ~/.cache/lm-studio/models, ~/Library/Application Support/LMStudio). Set SHIMMY_BASE_GGUF to override and point directly at a specific GGUF file.

Can I run multiple models at once? Not currently โ€” Shimmy loads one model per server instance. To serve multiple models, run multiple server instances on different ports. Hot-swapping models (reload without restart) is on the roadmap.

Why does generation stop before max_tokens? The model reached a natural end-of-sequence token. For chat models this is expected behavior โ€” the model signals it's done. If you want to force longer output, increase max_tokens and set temperature > 0. If generation stops on the wrong token, the model may be using the wrong chat template โ€” see CHAT_TEMPLATES.md.

Is there streaming support? Set "stream": true in your request. Shimmy returns Server-Sent Events in the standard OpenAI streaming format.

Q4_K_M vs Q4_0 โ€” which should I use? Q4_K_M (K-quant) is consistently better quality than Q4_0 for the same file size. Use Q4_0 only when you need maximum compatibility or the model isn't available in K-quant. See QUANTIZATION.md for the full analysis.

Can I extend the context window beyond what the model was trained on? Yes โ€” set SHIMMY_MAX_CTX to any value. Airframe applies YaRN scaling automatically when the requested context exceeds the model's native context. Quality degrades gradually beyond 2ร— the native context. See EXTENDED_CONTEXT.md.


๐Ÿ“š Documentation Hub

Full documentation lives in docs/. Use this table to find what you need:

Getting Started

Document Description
docs/quickstart.md 5-minute getting started guide
docs/MIGRATION_v2.md Migrating from Shimmy v1.x
docs/CONFIGURATION.md All environment variables and config options
docs/WINDOWS_GPU_BUILD_GUIDE.md Windows-specific build instructions

API & Integration

Document Description
docs/API.md Complete API endpoint reference
docs/OPENAI_COMPAT.md OpenAI compatibility matrix โ€” what's supported
docs/INTEGRATION.md Integrating with LangChain, OpenAI SDKs, etc.
docs/EXAMPLES.md Runnable code examples
docs/CROSS_COMPILATION.md Building for other targets (ARM, Linux from Windows)

Engine Deep Dives

Document Description
docs/ARCHITECTURE.md System-level architecture and component map
docs/GPU_PIPELINE.md Bindless GPU architecture, WGSL shaders, dispatch patterns
docs/QUANTIZATION.md Q4_0, Q8_0, K-quant formats โ€” bit-level internals
docs/EXTENDED_CONTEXT.md YaRN RoPE scaling, VRAM math, context extension
docs/CHAT_TEMPLATES.md Chat template auto-detection and format reference
docs/MODEL_EXPANSION.md Model onboarding protocol and acceptance gates

Troubleshooting & Reference

Document Description
docs/TROUBLESHOOTING.md Diagnostic guide for GPU errors, model failures, port conflicts
docs/PERFORMANCE.md Performance tuning and token/sec benchmarks
docs/FEATURES.md Complete feature list

Development & Methodology

Document Description
docs/METHODOLOGY.md Engineering methodology and quality standards
docs/REGRESSION_TESTING.md Regression testing approach
docs/ppt-invariant-testing.md Property-based and invariant testing details
docs/METRICS.md Observability and metrics reference

Community & Support

Star History

Star History Chart

๐Ÿš€ Momentum Snapshot

๐ŸŒŸ GitHub stars stars and climbing fast โฑ <1s startup ๐Ÿฆ€ 100% Rust, no Python

๐Ÿ“ฐ As Featured On

๐Ÿ”ฅ Hacker News โ€ข Front Page Again โ€ข IPE Newsletter

Companies: Need invoicing? Email michaelallenkuykendall@gmail.com

โšก Performance Comparison

Tool Startup Time Memory Usage OpenAI API
Shimmy <100ms 50MB 100%
Ollama 5-10s 200MB+ Partial

Quality & Reliability

Shimmy maintains high code quality through comprehensive testing:

  • Comprehensive test suite with property-based testing
  • Automated CI/CD pipeline with quality gates
  • Runtime invariant checking for critical operations
  • Cross-platform compatibility testing

Development Testing

Run the complete test suite:

# Using cargo aliases

cargo test-quick           # Quick development tests


# Using Makefile  

make test                  # Full test suite

make test-quick            # Quick development tests

See our testing approach for technical details.


License & Philosophy

MIT License - forever and always.

Philosophy: Infrastructure should be invisible. Shimmy is infrastructure.

Testing Philosophy: Reliability through comprehensive validation and property-based testing.


Forever maintainer: Michael A. Kuykendall Promise: This will never become a paid product Mission: Making local model inference simple and reliable