Update: what's new in the browser version
A big thank-you to @krass, @majid and @rich-o-brien for their feedback. Your bug reports and suggestions shaped almost everything below. Here's what changed this week:
Modelling
Selecting edges is much easier. Before, the face under the cursor usually won over a nearby edge. Now visible edges near the cursor get picked first.
Push/pull works in more places. You can now push/pull next to overhanging faces, pull up from an attached overhang, and push/pull where two volumes touch along an edge.
Typed push/pull distances follow the cursor, like in SketchUp. Drag into a wall, type 0.3, and it pushes in instead of out. Typed values also no longer pick up tiny rounding errors.
Explode for groups and components.
Zoom Extents with Shift+Z.
Snapping works better on edges seen in perspective, and to the point where a locked axis crosses an edge.
Fixed several geometry bugs: holes lost when tracing roof boundaries, nested faces, faces flipping when you draw edges on them, and arcs split by crossing lines.
Files
Save and open Modlumi projects (.modl). You get Save, Save As, a marker for unsaved changes and a "save before leaving?" prompt.
SketchUp files open with their saved scene camera, so you see the model the way it was saved.
Save to Image downloads a PNG of your view.
Look and feel
Lighting now comes from the camera, as in SketchUp, so walls facing you are no longer a dull grey.
Shortcuts work on AZERTY and QWERTZ keyboards. Letter shortcuts now match the letter printed on your key.
Menus release the keyboard as soon as you choose an item.
Feedback
You can attach your SketchUp file to a feedback report, which makes geometry bugs much easier for me to reproduce. The feedback button is also easier to find now.
Coming up
A native desktop version. It's the same Modlumi, running as a full app on your computer.
A Python scripting API. You'll be able to automate modelling tasks and build your own tools with Python scripts.
Try it at https://modlumi.com. Please keep the reports coming!