Skip to main content

All posts

Inside the App for n8n's First Official Conference, 'In The Loop 2026': Fliplet Low-Code and the Design of Node Runner Gamification

'In The Loop 2026', n8n's first official in-person conference, takes place in Berlin in October 2026. I connected the official mobile app (Fliplet Hub) installed on my phone over wireless ADB and took it apart: the session agenda, the networking concierge, floorplan pinpointing, and 'Node Runner', a game where you roam the venue scanning node QR codes to complete a workflow. A look at the tech stack behind a developer event.

12 min readInyoung Lee

Why I Left My Job as an 8-Year Data Analyst to Start DataPopcorn

After working with data at SOCAR, TADA, Zigzag and Coupang, I left to start DataPopcorn. I pictured a 'DataPopcorn Universe' where analysts create content and courses together, but 80% of first-year revenue came from lectures I taught myself, and when the lectures stopped, the company had nothing it could do on its own. This is everything I think about DataPopcorn: why I started it, a look back at year one, what students taught me, the year-two strategy, what I learned running a company on my own money, and why I now want to go back to working at a company.

24 min readInyoung Lee

Paste an n8n Workflow Link, Get a Vertical Video of How It Actually Ran

Give it an n8n workflow link and it collects the execution log, node icons and the real input and output screens, then builds a 9:16 vertical explainer video. I walk through it with two examples, a comic-translation bot and a weather alert. The key is a structure that splits the collected information into spec.json so you don't rewrite code for every workflow.

15 min readInyoung Lee

The Same 540K Rows Can Be 3.5MB or 102.7MB: How to Choose Between CSV, Excel, JSON and Parquet

I saved 540,000 rows of transactions from a UK online store as CSV, JSON and Parquet. The files came out at 45.0MB, 102.7MB and 3.5MB, and with CSV and JSON the types of the date and customer ID columns changed the moment I read them back. Using all 151 Pokémon from PokeAPI, I also cover the pitfalls of flattening nested JSON into a table and monthly partitioning, all with real measurements.

16 min readInyoung Lee