~/talks

Joe Karlsson

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no series more than once — all 12 in the filters

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who talks about the same things

titleconferencedate
A Gentle Introduction to Building Data-Intensive ApplicationsConf42 Golang 20222022-03-29
Claims how to handle exploding data (80 ZB in 2022 to ~175 ZB by 2025) and demonstrates a concrete pipeline: consuming a Redpanda stream, ingesting via…
Talk on
An Introduction To IoT; Or How I Built an IoT Kitty Litter Box Using JavaScriptJSNation Live 20212021-06-09
This talk is an introduction to IoT and JavaScript, discussing the use of JavaScript and Node for IoT projects, the importance of data considerations and…
Talk on
Save The World And Money with MongoDB Data LakesConf42 Cloud Native 20212021-04-29
Demo shows an automatic pipeline that archives cold MongoDB data to AWS S3 using Serverless Triggers/Realm and Atlas configuration, moving identifiable batches…
Talk on
MongoDB Patterns and Anti-PatternsConFoo 20212021-02-24
Covers practical design patterns and anti-patterns for using MongoDB, discussing which data modelling and operational approaches work well versus common…
Talk in French on
Bechdel.io: How We Used JavaScript To Help Make Film More InclusiveDevFest WI 20202020-10-24
bechdel.io is a JavaScript script parser that breaks screenplays into scenes using INT/EXT markers, pulls cast genders from the IMDb API, and checks for two…
Talk on
An Introduction to IoT (Internet of Toilets); Or How I Built an IoT Kitty Litter Box Using JSData Con LA 20202020-10-23
Builds a working IoT smart kitty litter box that logs cat weights and visit timestamps using a Raspberry Pi, Johnny-Five for GPIO, a magnetic switch for…
Talk on
Special 1 - 23/10/2020Nerdearla 20202020-10-20
This episode is a Flow special from Nerdearla 2020 hosted by Clarisa Herrera and Sebastián De Toma, containing interviews and technical talks. It features…
Talk in Spanish on
An Intro To IoT (Internet of Toilets 🚽); Or How I Built an IoT Kitty Litter Box with JavaScriptNerdearla 20202020-10-20
A working IoT litter box built with a Raspberry Pi and JavaScript uses Johnny-Five and raspi-io for hardware events, a magnetic switch for maintenance mode…
Talk on
From SQL to NOSQL - a gentle intro for DevsConf42 JavaScript 20202020-09-30
Explains concrete differences: MongoDB stores data as documents as BSON instead of rows, supports indexing (B‑trees), multi‑document ACID transactions, and…
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MongoDB Schema Design - best practicesConf42 JavaScript 20202020-09-30
Covers concrete MongoDB schema choices: use embedded documents to serve common queries with one fast, atomic read and avoid joins, or use references when…
Talk on
Internet of Toilets 🚽🐈💩 how I built a Kitty Litter using JSConf42 JavaScript 20202020-09-30
Built a working IoT litter box that logs every cat visit and a passive weight reading, using a Raspberry Pi running Node.js with Johnny-Five for GPIO and a…
Talk on
An Introduction To IoTCodeLand 20202020-07-23
A Raspberry Pi runs Node.js to power an IoT litter box that records cat visits as time‑series documents in MongoDB. It uses a magnetic door switch to set…
Talk on
An Introduction to the Internet of ToiletsHalfStack Online May 20202020-05-22
A working internet-connected litter box records cleaning events via a magnetic lid switch, captures cat-weight from load cells, and logs bathroom events to…
Talk on
UX + Engineering: A Tale of Two CitiesNDC Minnesota 20192019-05-06
Argues that engineers join design before handoff and run dev-design workshops where a small squad (ideally one designer, one product, one or two devs)…
Talk on
Building High Performance React ApplicationsNode+JS Interactive 20182018-10-10
React at Best Buy stays fast by measuring and reducing actual DOM work: using keys cuts a sample list render from 34ms → 17ms, adding shouldComponentUpdate…
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