Stephen Blum
@stephenlb.bsky.social
CTO @ PubNub | $134M raised | Series E | +1 Billion devices | 68 Patent claims | 25 Years
It saves gradients for training, but skip it during inference.
#deeplearning #training #inference
#deeplearning #training #inference
February 7, 2026 at 12:33 AM
It saves gradients for training, but skip it during inference.
#deeplearning #training #inference
#deeplearning #training #inference
Some think Claude makes coding obsolete, like hunters and gatherers.
#ai #coding #future
#ai #coding #future
February 7, 2026 at 12:32 AM
Some think Claude makes coding obsolete, like hunters and gatherers.
#ai #coding #future
#ai #coding #future
PubNub powers real time in app updates for tracking, games, chat.
#realtime #messaging #PubNub
#realtime #messaging #PubNub
February 7, 2026 at 12:31 AM
PubNub powers real time in app updates for tracking, games, chat.
#realtime #messaging #PubNub
#realtime #messaging #PubNub
Arrays store data; matrices are 2D; tensors generalize across dimensions.
#math #ai #tensors
#math #ai #tensors
February 7, 2026 at 12:30 AM
Arrays store data; matrices are 2D; tensors generalize across dimensions.
#math #ai #tensors
#math #ai #tensors
We rewrote 40,000 lines in Go into 3,000, simpler.
#golang #refactoring #simplicity
#golang #refactoring #simplicity
February 5, 2026 at 8:42 PM
We rewrote 40,000 lines in Go into 3,000, simpler.
#golang #refactoring #simplicity
#golang #refactoring #simplicity
You inspired me to try it, even if Python one liners confuse.
#python #coding #devlife
#python #coding #devlife
February 5, 2026 at 8:41 PM
You inspired me to try it, even if Python one liners confuse.
#python #coding #devlife
#python #coding #devlife
Java call stacks fill fast, and deep calls can crash programs.
#typescript #javascript #java
#typescript #javascript #java
February 5, 2026 at 8:40 PM
Java call stacks fill fast, and deep calls can crash programs.
#typescript #javascript #java
#typescript #javascript #java
JavaScript classes simplify prototype code, making inheritance easier to read.
#javascript #programming #webdev
#javascript #programming #webdev
February 5, 2026 at 8:39 PM
JavaScript classes simplify prototype code, making inheritance easier to read.
#javascript #programming #webdev
#javascript #programming #webdev
Closures act like factories, holding state you can reuse later.
#closures #javascript #programming
#closures #javascript #programming
February 5, 2026 at 8:38 PM
Closures act like factories, holding state you can reuse later.
#closures #javascript #programming
#closures #javascript #programming
Eighty thousand seconds is roughly twenty two hours of time.
#python #math #timemanagement
#python #math #timemanagement
February 5, 2026 at 8:37 PM
Eighty thousand seconds is roughly twenty two hours of time.
#python #math #timemanagement
#python #math #timemanagement
C powers finance infrastructure, while C major is just music.
#c #programming #finance
#c #programming #finance
February 5, 2026 at 8:36 PM
C powers finance infrastructure, while C major is just music.
#c #programming #finance
#c #programming #finance
React can power console UIs by rendering components into text.
#react #console #javascript
#react #console #javascript
February 5, 2026 at 8:35 PM
React can power console UIs by rendering components into text.
#react #console #javascript
#react #console #javascript
Use a home IP and common user agent to avoid detection.
#automation #scraping #security
#automation #scraping #security
February 5, 2026 at 2:17 AM
Use a home IP and common user agent to avoid detection.
#automation #scraping #security
#automation #scraping #security
Lost documents before, so we switched back to trusted Postgres.
#databases #postgres #couchdb
#databases #postgres #couchdb
February 5, 2026 at 2:17 AM
Lost documents before, so we switched back to trusted Postgres.
#databases #postgres #couchdb
#databases #postgres #couchdb
You were right, Firestore and DynamoDB are databases too, always.
#databases #nosql #developers
#databases #nosql #developers
February 5, 2026 at 2:16 AM
You were right, Firestore and DynamoDB are databases too, always.
#databases #nosql #developers
#databases #nosql #developers
A spreadsheet can be a database if it stores and returns data.
#data #databases #spreadsheets
#data #databases #spreadsheets
February 5, 2026 at 2:15 AM
A spreadsheet can be a database if it stores and returns data.
#data #databases #spreadsheets
#data #databases #spreadsheets
Redis is fast key value storage with optional persistence, not SQL.
#redis #database #caching
#redis #database #caching
February 5, 2026 at 2:14 AM
Redis is fast key value storage with optional persistence, not SQL.
#redis #database #caching
#redis #database #caching
AI can explain disassembly, but security still depends on good design.
#reverseengineering #security #ai
#reverseengineering #security #ai
February 5, 2026 at 2:13 AM
AI can explain disassembly, but security still depends on good design.
#reverseengineering #security #ai
#reverseengineering #security #ai
Open source means you can use it commercially, free and ready.
#opensource #commercial #free
#opensource #commercial #free
February 5, 2026 at 2:12 AM
Open source means you can use it commercially, free and ready.
#opensource #commercial #free
#opensource #commercial #free
Our C and Rust stack auto scales on ARM for years.
#rust #c #arm
#rust #c #arm
February 4, 2026 at 12:11 AM
Our C and Rust stack auto scales on ARM for years.
#rust #c #arm
#rust #c #arm
Python uses simple symbols, so code stays clean and readable.
#python #coding #programming
#python #coding #programming
February 4, 2026 at 12:10 AM
Python uses simple symbols, so code stays clean and readable.
#python #coding #programming
#python #coding #programming
Web scraping collects site data, but it does not make it yours.
#webscraping #copyright #ai
#webscraping #copyright #ai
February 4, 2026 at 12:09 AM
Web scraping collects site data, but it does not make it yours.
#webscraping #copyright #ai
#webscraping #copyright #ai
Add real time open captions to OBS with a simple subtitle tool.
#streaming #subtitles #obs
#streaming #subtitles #obs
February 4, 2026 at 12:09 AM
Add real time open captions to OBS with a simple subtitle tool.
#streaming #subtitles #obs
#streaming #subtitles #obs
Build a Python terminal chat module that sends and receives messages.
#python #networking #terminal
#python #networking #terminal
February 4, 2026 at 12:07 AM
Build a Python terminal chat module that sends and receives messages.
#python #networking #terminal
#python #networking #terminal
A simple plugin turns touch gestures into clean drag and drop.
#touchscreen #ui #tech
#touchscreen #ui #tech
February 4, 2026 at 12:07 AM
A simple plugin turns touch gestures into clean drag and drop.
#touchscreen #ui #tech
#touchscreen #ui #tech