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The whole framework, one binary.

Soli is a programming language with a complete MVC framework built in — models, validations, auth, background jobs, mailer, PDF, WebSockets, live views, i18n, tests. Ruby's expressiveness, Rust's speed, and nothing to install but soli itself.

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JSON req/s

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Dependencies

GET /posts

Anatomy of a request

One route, one controller, one model, one view — and the dev bar times every hop. This is the entire stack. There is nothing else to wire up.

config/routes.sl 2 µs

get("/posts", "posts#index")

app/controllers/posts_controller.sl 14 µs

class PostsController < Controller
  def index
    @posts = Post
      .where("doc.status == @s", { "s": "published" })
      .order("created_at", "desc")
      .limit(10).all
  end
end

app/models/post.sl 190 µs

class Post < Model
  validates("title", { "presence": true, "min_length": 3 })

  def author
    User.find(this.author_id)
  end
end

dev_queries() · 1 AQL query · 0.19 ms

FOR doc IN posts FILTER doc.status == @s SORT doc.created_at DESC LIMIT 10 RETURN doc

app/views/posts/index.html.slv 34 µs

<% for post in @posts %>
  <article>
    <h2><%= h(post["title"]) %></h2>
    <p><%= post["excerpt"] %></p>
  </article>
<% end %>

HTTP/1.1 200 OK
X-Soli-Route: posts#index
X-Soli-Render-Us: 240

240 µs of server time — the dev bar measures every request, every query, on every page you build.

Soli MVC

Batteries actually included

The parts every app needs live in the binary, not in a package registry. No Gemfile, no package.json, no supply chain — one real line of code each.

Authentication & policies

soli generate auth scaffolds login, sessions, and a Pundit-style policy layer.

authorize(post)  # 403 unless PostPolicy allows it

Validations & callbacks

Declared on the model, enforced on every create and update.

validates("email", { "presence": true, "uniqueness": true })

Background jobs

SolidB-backed queue with scheduling, priorities, retries, and cron.

WelcomeEmailJob.perform_in("5 minutes", { "user_id": 42 })

Mailer

Rails-style mailers with templates, layouts, and attachments.

UserMailer.welcome(user).deliver_later

PDF generation

JSON templates to invoice-grade PDFs, returned straight from an action.

pdf_response(template, data, { "filename": "invoice.pdf" })

WebSockets

Channels, rooms, and broadcast — hashes serialize themselves.

ws_broadcast_room(room, { "user": name, "body": msg })

Live views

Server-rendered reactive components without writing JavaScript.

<button soli-click="increment">+</button>

i18n

Translations with interpolation and pluralization built in.

t("welcome.greeting", { "name": user["name"] })

Also in the box:

Sessions Cache & KV Rate limiting Uploads S3 Spreadsheets Migrations State machines Feature flags Cron Testing & coverage Linter Formatter Hot reload Dev bar

From zero to CRUD in one command

Scaffolds generate the model, controller, views, tests, migration, and routes. The auth generator does the same for login, sessions, and policies.

Terminal

$ soli generate scaffold blog_posts title:string content:text author:string published:boolean
Success! Created scaffold for blog_posts

# Generated files:
app/models/blog_posts_model.sl
app/controllers/blog_posts_controller.sl
app/views/blog_posts/index.html.slv
app/views/blog_posts/show.html.slv
app/views/blog_posts/new.html.slv
app/views/blog_posts/edit.html.slv
app/views/blog_posts/_form.html.slv
tests/models/blog_posts_test.sl
tests/controllers/blog_posts_controller_test.sl
db/migrations/*create_blog_posts_*.sl
✓ Routes added to config/routes.sl

$ soli generate auth
Success! Session authentication generated
app/policies/application_policy.sl
app/policies/user_policy.sl
app/helpers/auth_helper.sl
+ User model, login/signup/logout controllers & views

Scaffold generator docs Auth & policies docs

Fast enough to be the whole stack

Measured by TechEmpower on 21× AWS c7i.2xlarge instances.

Powered by SoliDB

A distributed, ACID-compliant multi-model database built in Rust. Documents, graph, vector search, time series, full-text, and blobs — the ORM speaks to all of it.

Documents

JSON store

Graph

Edges & traversal

Vector

HNSW search

Time series

Metrics & logs

Full-text

Search engine

Blobs

File storage

app/models/user.sl

class User < Model
  validates("email", { "presence": true, "uniqueness": true })
  before_save("normalize_email")

  def normalize_email
    this.email = this.email.trim().downcase() unless this.email.blank?
  end
end

# Chainable query builder — compiles to a single AQL query
admins = User
  .where("doc.role == @r", { "r": "admin" })
  .order("created_at", "desc")
  .limit(20).all

Soli ORM docs SoliDB documentation

This counter is live, right now

A server-rendered reactive component over a WebSocket — no JavaScript written, a ~7 KB (gzipped) client served by the binary itself and loaded only on pages that use it. Type in the field: every keystroke round-trips the server and the patch lands without stealing your focus or caret.

Live demo · /live/socket/counter

...

Connecting...

0 JS

Written

Server

State

~7KB

Client (gzipped)

app/views/live/counter.html.slv

<!-- That's the whole component. -->
<div class="counter">
  <h2><%= count %></h2>
  <button soli-click="decrement">-</button>
  <button soli-click="increment">+</button>
</div>

The server holds the state; the client morphs the DOM in place, so focus and widget state inside the region survive every update. A second live demo — a server clock pushing 20 updates a second — runs in the LiveView docs.

In production

Built with Soli. Running for real.

Bonfire is a full project-management SaaS — real-time chat over WebSockets, file uploads with inline previews, browser push, iCal feeds, public share links, and an interface translated into nine languages — running on Soli and SolidB in production. Not a demo. Not a benchmark. A product with users.

Real-time chat 9 languages Push notifications File uploads iCal feeds Public share links

Visit bonfire-app.pro Free forever for personal use.

bonfire-app.pro

Message Board pinned

Kickoff: what we are NOT building

Mara · 12 comments

To-dos Launch list · 4/6

✓ ~~Migrate the importer~~
Copy review with Mara
Ship it THU

Hill Chart Week 4 of 6

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