Plutonium · The Rails RAD framework

The Rails framework for things you should never write again.

Convention over configuration, extended to everything you keep rebuilding.

CRUD. Auth. Authorization. Multi-tenancy. Wizards. Kanban. Admin portals. Search, filters, bulk actions. All generated. All customizable. All Rails.

Get started →Tutorial

$ rails g pu:pkg:portal admin
      create  packages/admin_portal/...
$ rails g pu:res:scaffold Post title:string body:text published_at:datetime --dest=main_app
      create  app/models/post.rb
      create  app/definitions/post_definition.rb
$ rails g pu:res:conn Post --dest=admin_portal
      ✓ Connected Post to AdminPortal
$

What you stop writing.

Same scaffold command. Two starting points. Very different surface area.

Rails scaffold

$ rails g scaffold Post title:string body:text published_at:datetime

Just CRUD

Plutonium

$ rails g pu:res:scaffold Post title:string body:text published_at:datetime --dest=main_app

Full CRUD+ Search+ Filters+ Custom actions+ Bulk actions

Scaffold a portal in minutes.

asciinema · scaffold a blog

More than CRUD.

Four features other frameworks make you build yourself. All declarative. All policy-aware.

app/definitions/task_definition.rb

kanban do
  card_fields header: :title, meta: [:status]

  column :todo, role: :backlog,
    scope: -> { where(status: "todo") },
    on_enter: ->(task) { task.update!(status: "todo") }

  column :doing, wip: 3,
    scope: -> { where(status: "doing") },
    on_enter: ->(task) { task.update!(status: "doing") }

  column :done, role: :done, accepts: [:doing],
    scope: -> { where(status: "done") },
    on_enter: :mark_done! do
    action :archive_all, interaction: ArchiveTasksInteraction, on: :all, label: "Archive all"
  end
end

Kanban board with Todo, Doing, and Done columns — WIP limit on Doing, quick-add on Todo, and an Archive all column action on Done

Columns lock and drags are rejected server-side when kanban_move? says no.Read the guide →

Built on Rails. Wired for shipping.

Convention over configuration

Extended to resources, policies, portals, and tenancy — not just routes and views.

It's just Rails

Generated code lives in your repo. Edit it, override it, delete it. The “magic” is regular Ruby mixins you can read.

Multi-tenant ready

Path or domain tenancy. Scoped relations. Invites and memberships out of the box.

AI-readable

Predictable file layout and naming. Built-in skills teach AI assistants the patterns.

For Rails developers

The missing layer between Rails and the apps you keep building.

Convention extended to CRUD, policies, and portals
Generated code lives in your repo — edit anything

For founders & teams

Skip the SaaS template debate. Plutonium turns Rails into a SaaS toolkit.

Admin panel, signup, and invites on day one
Multi-tenant scoping when you need it

Organized the way you'll use it.

Resources

ScaffoldsModel, definition, policy, routes Search & filtersDeclarative on the definition Custom & bulk actionsResource-scoped interactions

Workflows

WizardsMulti-step flows with branching & resume Kanban boardsDrag-drop boards from one block InteractionsBusiness logic with auto-generated UI

App structure

PortalsThemed, mountable engines PackagesFeature engines under your app Multi-tenancyPath or domain scoping

People & access

Auth (Rodauth)Login, signup, password reset AuthorizationActionPolicy per resource Invites & membershipsToken lifecycle, mailers, onboarding

“Stop writing the parts of every Rails app you've already written. Plutonium is what should have been there all along.”

$ rails new my_app -a propshaft -j esbuild -c tailwind -m https://radioactive-labs.github.io/plutonium-core/templates/plutonium.rb

Get started GitHub