Leo Chen (@leochen)

Chat SDK for E-Commerce Customer Service: A Case Study with MINISO

"Where is my order?" is probably the most common question in online retail. The answer is rarely a mystery. It's sitting in an order system, one lookup away. Yet in plenty of support queues a person s

3d ago · 11 min readinteraction-lab.hashnode.dev

Nexconn Startup Growth Pack: Free Chat + Cloud Discounts

Here's a number worth putting on a sticky note: 1.9 years. That was the median gap between a seed round and a Series A for US startups in Q4 2025, according to Carta's data on 9,843 rounds. Carta's da

Oct 19 · 12 min readinteraction-lab.hashnode.dev

What Is a Call API? The 2026 Developer Guide to In-App Voice, Video, and Real-Time Infrastructure

Every app that starts with typing eventually needs a moment where typing isn't enough. A support ticket that should have been a two-minute phone call. A dating match that wants to hear the other perso

Oct 12 · 8 min readinteraction-lab.hashnode.dev

Telehealth Communication: Building Reliable Virtual Care

There's a gap between when a patient leaves the clinic and when they next need care — and for most health platforms, that gap is where continuity breaks down. A physician can complete a consultation i

Sep 28 · 11 min readinteraction-lab.hashnode.dev

When Agents Join the Network: The Next Architecture for A2A Communication

Build a messaging feature for people, and a lot of assumptions come for free. A person reads a message roughly in order. A person doesn't need a formal record of why they changed their mind mid-conver

Sep 21 · 8 min readinteraction-lab.hashnode.dev

Leo Chen

About

Available for

Leo Chen's blogs

Chat SDK for E-Commerce Customer Service: A Case Study with MINISO

Nexconn Startup Growth Pack: Free Chat + Cloud Discounts

What Is a Call API? The 2026 Developer Guide to In-App Voice, Video, and Real-Time Infrastructure

Telehealth Communication: Building Reliable Virtual Care

When Agents Join the Network: The Next Architecture for A2A Communication

Leo Chen

About

Available for

Leo Chen's blogs

Chat SDK for E-Commerce Customer Service: A Case Study with MINISO

Nexconn Startup Growth Pack: Free Chat + Cloud Discounts

What Is a Call API? The 2026 Developer Guide to In-App Voice, Video, and Real-Time Infrastructure

Telehealth Communication: Building Reliable Virtual Care

When Agents Join the Network: The Next Architecture for A2A Communication

Leo Chen

About

Available for

Leo Chen's blogs

Chat SDK for E-Commerce Customer Service: A Case Study with MINISO

Nexconn Startup Growth Pack: Free Chat + Cloud Discounts

What Is a Call API? The 2026 Developer Guide to In-App Voice, Video, and Real-Time Infrastructure

Telehealth Communication: Building Reliable Virtual Care

When Agents Join the Network: The Next Architecture for A2A Communication

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Leo Chen

About

Available for

Leo Chen's blogs

Chat SDK for E-Commerce Customer Service: A Case Study with MINISO

Nexconn Startup Growth Pack: Free Chat + Cloud Discounts

What Is a Call API? The 2026 Developer Guide to In-App Voice, Video, and Real-Time Infrastructure

Telehealth Communication: Building Reliable Virtual Care

When Agents Join the Network: The Next Architecture for A2A Communication