How to turn a video file into SRT subtitles on a Mac without an OpenAI API key or a paid captioning service. I ran every step myself, from creating a virtual environment and installing packages to a copy-paste script, real output, and the errors you're most likely to hit.
Before you use an AI-generated analysis as is, check the baseline period, the sample, the unit being counted, source bias and causal order. I show how with calculations on real public data, plus a review prompt you can paste into ChatGPT or Claude and a 15-item checklist.
We fetch the same weather data twice: once by calling the API directly, and once by wrapping it in an MCP server and opening the tool description the AI actually reads. With a free public API and a single Python file, you can see the difference between API and MCP for yourself in 15 minutes and decide when to use which.
Using the Meta Instagram API's Private Replies and an n8n webhook, here's a 9-step setup that, when someone leaves a keyword comment on a specific Reel, checks whether they follow you and then DMs them a link automatically. Signature verification and duplicate prevention included.
'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.
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.
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.
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.
Japan's seafood (HS03) exports to China were $538.4 million in 2022 and $2.6 million in reported value in 2024. The extra $150 million bought by the US, Vietnam and Thailand covered less than a third of what was lost, and in the five months right after the ban, exports to other destinations grew by only $0.8 million.
