VeloxDev

A node-editor and workflow-engine framework for .NET.

_{Overview · six beats: the real editor, seven GUIs, the pipeline, the four layers, the skills, the close.}

Workflow — the core film

_{skills/veloxdev-create-workflow · a tree of nodes, slots and links — edited or executed.}

One skill per film

ViewModels skills/veloxdev-write-viewmodels · write the node, not the plumbing.	Animation skills/veloxdev-create-animation · motion is a transition: declare it, reuse it, chain it.
Themes skills/veloxdev-switch-themes · one palette, any surface — and the change can animate.	Tick loop skills/veloxdev-tick-loop · a Unity-style frame loop for any class.
Aspects skills/veloxdev-add-aspects · cross-cutting behaviour without editing the member body.	AI control skills/veloxdev-drive-workflow-with-ai · the Agent edits the same graph through the same commands.

Headless CLI

_{skills/veloxdev-use-workflow-cli · load, inspect, edit, compile and run without a window.}

All nine are 1280 × 720 at 15 fps. Each skill film is one of the eight skills/ SKILL.md files, and each film is also a VeloxDev workflow archive that veloxdev run executes end to end. Beats and verification: Assets/promo/README.md.

Packages

dotnet add package VeloxDev.Core              # the graph model + engine, no UI
dotnet add package VeloxDev.WPF               # one adapter (brings Core)
dotnet add package VeloxDev.Core.Extension    # optional — the AI surface
dotnet tool install --global VeloxDev.Cli     # optional — headless host and MCP server

Platform	Package	Targets
WPF	VeloxDev.WPF	netframework4.6.1 · net5.0-windows · netcoreapp3.0 · net8.0-windows
Avalonia	VeloxDev.Avalonia	netstandard2.0 · net6.0 · net8.0
WinUI	VeloxDev.WinUI	net8.0-windows10.0.19041.0 · net10.0-windows10.0.19041.0
MAUI	VeloxDev.MAUI	net10.0 · net10.0-windows10.0.19041.0
WinForms	VeloxDev.WinForms	netframework4.6.1 · net5.0-windows · netcoreapp3.0 · net8.0-windows
Razor	VeloxDev.Razor	net6.0 · net8.0
Jalium	VeloxDev.Jalium	net10.0

VeloxDev.Core targets netstandard2.0 through net8.0 and declares IsAotCompatible on net8.0; trimming and AOT remain per-platform realities.

Generate the view suite

dotnet new install VeloxDev.WPF.Templates
dotnet new wpf-v-node -n NodeView -ns MyApp.Views

All seven roles, and the prefix for each adapter

dotnet new wpf-v-tree      -n WorkflowView     -ns MyApp.Views
dotnet new wpf-v-node      -n NodeView         -ns MyApp.Views
dotnet new wpf-v-slot      -n SlotView         -ns MyApp.Views
dotnet new wpf-v-link      -n LinkView         -ns MyApp.Views
dotnet new wpf-v-selector  -n TemplateSelector -ns MyApp.Views
dotnet new wpf-v-decorator -n GridDecorator    -ns MyApp.Views
dotnet new wpf-v-minimap   -n MinimapOverlay   -ns MyApp.Views

The other adapters use ava-v-*, winui-v-*, maui-v-*, winforms-v-*, razor-v-* and jalium-v-*.

Workflow in code

The whole loop: a node, a wire, a compile and a run.

[WorkflowBuilder.Node<BiasNodeHelper>]
public partial class BiasNodeViewModel
{
    public BiasNodeViewModel() => InitializeWorkflow();
    [VeloxProperty] public partial SlotViewModel Input { get; set; }
    [VeloxProperty] public partial SlotViewModel Output { get; set; }
}

tree.CreateNodeCommand.Execute(bias);
tree.SendConnectionCommand.Execute(ticker.Output);
tree.ReceiveConnectionCommand.Execute(bias.Input);

var compiler = new CompilerViewModel();
var graph = (await compiler.CompileAsync(ticker, CompileRole.Root)).Single();
var session = new RuntimeContext { Data = "seed" };
await new RuntimeEngine().RunAsync(graph, session, CancellationToken.None);

BiasNodeHelper.ReceiveAsync is the node's computation; the generator writes the rest.

• CompileRole.Terminal compiles the ancestor cone for one node instead of walking downstream.
• Branches compile to router segments, fan-out to parallel segments with keyed joins, and loops are redirects, not cycles.
• ValidateConnection is the host's rule; drag-time previews use it and report a reason.
• SlotEnumerator<T> + [SlotSelectors] rebuild a node's ports when its configuration changes.

Also in Core

Layer	What it gives you
MVVM	Generated observable properties and async, cancellable commands — no INotifyPropertyChanged boilerplate
Transition	Timelines, easing, keyframes and scheduling — the animation engine the adapters share
Theme	Runtime theme switching that animates between states instead of snapping
AOP	Generated aspect interfaces with runtime proxies — intercept a member without touching the class that declares it
Tickable	A frame-driven lifecycle loop with a fixed-step pump beside the variable one
Serialization	A closed-world archiver with generated readers and writers — no reflection, and an unseen type fails loudly instead of serializing an empty shell

Repository map

Path	What it holds
Src/Core/VeloxDev.Core	The model, canvas mechanics, compiler, runtime and the supporting layers
Src/Core/VeloxDev.Core.Extension	The Agent, MCP, skills and sub-agents — additive to Core
Src/Adapters/	The seven platform adapters
Src/Templates/	The seven dotnet new item-template packs
Src/Generators/	The Roslyn generator
Examples/	A demo per feature per GUI, including trimmed-publish demos
Docs/	The source of the documentation site

License

Released under the MIT License. © 2025 Axvser