diumThe Post-Hopin Vacuum: What a 2026 Virtual Conference Stack Actually Needs
Hopin coasted, RingCentral Events stalled, Airmeet pivoted. The category left a hole big enough to drive a manifesto through.
Events and lobbies
Running live and hybrid events: the lobby, stage mode, sponsor booths, tables, RSVPs, and what happens to the conversation after the session ends.
'Stage Mode' Is a UI Mode, Not a Feature: the 9 Affordances Every Live Wave Needs
Spec-derived checklist for what the live state of a Session thread has to render. Eight of nine isn't enough.
The 'Event Pulse': the 7 Signals Every Lobby Home Should Surface
An event lobby home is not an agenda list. It's seven simultaneously-rendered signals that change minute by minute.
Sponsor Booths That Convert: a 12-Element Spec You Can Copy
A sponsor booth that converts (and renews) needs twelve elements. Most platforms ship six.
Sponsor ROI Follow-Up: the 72-Hour Rule Is Wrong; the Real Decay Starts at Hour 8
Industry folklore says follow up within 72 hours. The actual conversion-decay curve says move it to within the working day.
The Green Room, the Backstage, and the Audience: a 3-Link Architecture for Live Sessions
Live sessions need three distinct join links: backstage (hosts only), green room (speakers prep), stage (audience).
Tables That Fill: Capacity, Auto-Close, Atomic Joins, and the SQL You Actually Need
Working code for breakout-room mechanics. The atomic UPDATE that prevents over-joins is the entire concurrency model.
The 7 Ways to RSVP, and Why 5 of Them Are Bad for Engagement
Hard RSVP commitment underperforms soft 'follow' for live conversion. The right RSVP UX picks low-commitment-high-show-up over high-commitment-low-show-up.
Pre-Live, Live, Post-Live: the Three-Act Lifecycle Every Event Thread Should Follow
State-machine playbook with distinct UI per phase. Most platforms ship phase 2 only; the wedge is phases 1 and 3.
Hybrid Events That Don't Suck: How to Make In-Room and Remote Feel Like the Same Room
The 2021 hybrid thesis died of bolted-on streaming. True parity requires shared waves, shared Q&A queue, and a remote-first agenda, not a streaming bolt-on.
The Continuation Thread: Turning Every Live Session Into Permanent Knowledge
Auto-spawn at session end, seeded with chat highlights, Q&A items, and resource links. The pattern that doubles event content lifetime value.
Speed Networking That Actually Works: Rotation, Skill-Matching, and the 4-Min Rule
Auto-match speed-networking sessions should rotate every 4 minutes with skill-balanced pairing for a 67% higher next-meeting acceptance rate.
The Sponsor Booth Buildout Checklist (37 Items)
Lead-magnet for sponsorship managers. Brand assets, 3 demos, perk gate, lead form, 2 staff seats, 4 booth-only files.
A Community 'For You' Feed in 12 Lines of SQL
Discovery rank = 0.35×temporal + 0.20×type-weight + 0.15×engagement + 0.20×personal + 0.10×context, computed in a single window-function SQL.
Semantic vs Keyword Search for Forums: When Each Wins
BM25 still beats pure vector search on title/tag retrieval. Vector wins on body retrieval and duplicate-question detection.
Duplicate-Question Detection: the 1 Model That Saves Your Moderators 8 Hours/Week
Cosine similarity > 0.82 on title-+first-paragraph embeddings catches 76% of duplicate questions before posting.
Live Demo Embed: 'Drop in to a Sample Dium Lobby'
Always-live multi-tenant sandbox with seeded waves, a running office-hour, and a sponsor booth.
The Conference Operator's Diary: Hour-by-Hour of Running a 1,200-Person Hybrid Event
1,200 attendees, 14 booths, 32 sessions, 8 tables, 1 lobby: peaks at 480 concurrent live with 78% session attendance.