r/SideProject • u/rohan1chaudhari • 17m left
Calque: a shared canvas where architects review drawings together, now with AI concept edits and a board agent
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What it is: a browser workspace for architecture and interior studios. You bring plans and references onto shared sheets, measure at scale, comment on the drawing itself, and agree the next revision with your team or client.
What's in the video (a real run, not a mockup):
- A plan on an A3 sheet, the existing kitchen photo and a material board beside it
- Edit with AI on the photo: a prompt, the material board attached as a reference, and the price shown up front. About 30 seconds later the renovated concept is on the board next to the original, which isn't modified.
- Then the board agent turns a one-line request into an editable A3 options sheet: existing vs. proposed, plus material notes
Why I built it: a friend's studio ran design reviews across Miro, a PDF markup tool and chat. Canvas tools aren't precise enough for drawings, and PDF tools aren't collaborative enough for design conversations.
Also works today: PDF/DXF/image/3D imports, optional scale per sheet or drawing, measuring, movable tracing sheets, real-time collaboration, pinned comments with @mentions, and ordered PDF export.
Stack: React + TypeScript on Cloudflare Workers, with Durable Objects for live sync and D1 + R2 for data and private uploads. Image edits use Google's Nano Banana Pro through Vertex AI. I replaced a licensed canvas library with my own editor and sync layer.
Where it's at: early access and free for now. I haven't validated willingness to pay, and I'm looking for studios or students to try it on a real project.
Try it: https://calque.si
Two things I'd love feedback on: is the AI genuinely useful in a review workflow or just a gimmick, and what would stop you moving a real review into it?