At the 2025 Venice Architecture Biennale, an installation constructed from scaffolding stitched together with nets and tube-shaped railings wraps the French Pavilion at the Giardini della Biennale and winds its way down to the water’s edge.

It’s not a structure meant to dazzle. Instead, it embodies something more pressing: a manifesto for architecture’s role in addressing what the curators Brendan MacFarlane and Dominique Jakob call a “polycrisis” — the overlapping emergencies of climate change, war, displacement, economic instability and systemic inequality.

This theme, summed up by the title “Vivre Avec/Living With,” sets the tone for a pavilion at the biennale dedicated to casting an extremely wide net for expertise and employing fast, not-so-precious solutions to an ever-expanding cascade of issues.

“We’re not making things as individuals anymore,” Mr. MacFarlane said in a video interview. “We’re working as collectives, linking capacities, sharing intelligences.”

The pavilion itself reflects the scrappy nature of this strategy. “It’s not a house, not a building,” he said. “It’s a kind of skeleton. It adapts to the landscape and leaves no trace.”

The pavilion showcases no fewer than 50 projects from around the planet. Some deal with climate adaptation, others with disaster relief. But none embodies the spirit of cross-cultural collaboration and intrepid architectural repair quite like Speedstac, a modular concrete building system developed by the Toronto-based architect Zenon Radewych, who is a principal at the firm, WZMH.