@itsalexzajac.bsky.social
Give me 60 seconds, and I'll teach you how Cursor works:
November 12, 2025 at 11:30 PM
Give me 60 seconds, and I'll teach you how Cursor works:
Code is read more often than it is written.
8 patterns to improve code readability:
8 patterns to improve code readability:
November 11, 2025 at 4:32 PM
Code is read more often than it is written.
8 patterns to improve code readability:
8 patterns to improve code readability:
You are what you eat.
10 brain foods to grow as an engineer:
10 brain foods to grow as an engineer:
November 10, 2025 at 4:31 PM
You are what you eat.
10 brain foods to grow as an engineer:
10 brain foods to grow as an engineer:
Good code explains itself.
Bad code needs comments:
Bad code needs comments:
November 9, 2025 at 4:31 PM
Good code explains itself.
Bad code needs comments:
Bad code needs comments:
I've been coding for 5 years.
And I've met every one of these "superheroes."
And I've met every one of these "superheroes."
November 8, 2025 at 4:28 PM
I've been coding for 5 years.
And I've met every one of these "superheroes."
And I've met every one of these "superheroes."
can't believe this sorting algorithm is O(n)
November 7, 2025 at 4:28 PM
can't believe this sorting algorithm is O(n)
𝗔𝗪𝗦 𝗵𝗮𝘀 𝟮𝟬𝟬+ 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀.
𝟭 𝗰𝗵𝗲𝗮𝘁𝘀𝗵𝗲𝗲𝘁 𝘁𝗼 𝗹𝗲𝗮𝗿𝗻 𝘁𝗵𝗲 𝗮𝗹𝗹 𝗳𝘂𝗻𝗱𝗮𝗺𝗲𝗻𝘁𝗮𝗹 𝗼𝗻𝗲𝘀:
𝟭 𝗰𝗵𝗲𝗮𝘁𝘀𝗵𝗲𝗲𝘁 𝘁𝗼 𝗹𝗲𝗮𝗿𝗻 𝘁𝗵𝗲 𝗮𝗹𝗹 𝗳𝘂𝗻𝗱𝗮𝗺𝗲𝗻𝘁𝗮𝗹 𝗼𝗻𝗲𝘀:
November 6, 2025 at 4:33 PM
𝗔𝗪𝗦 𝗵𝗮𝘀 𝟮𝟬𝟬+ 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀.
𝟭 𝗰𝗵𝗲𝗮𝘁𝘀𝗵𝗲𝗲𝘁 𝘁𝗼 𝗹𝗲𝗮𝗿𝗻 𝘁𝗵𝗲 𝗮𝗹𝗹 𝗳𝘂𝗻𝗱𝗮𝗺𝗲𝗻𝘁𝗮𝗹 𝗼𝗻𝗲𝘀:
𝟭 𝗰𝗵𝗲𝗮𝘁𝘀𝗵𝗲𝗲𝘁 𝘁𝗼 𝗹𝗲𝗮𝗿𝗻 𝘁𝗵𝗲 𝗮𝗹𝗹 𝗳𝘂𝗻𝗱𝗮𝗺𝗲𝗻𝘁𝗮𝗹 𝗼𝗻𝗲𝘀:
Why can we spin up 1000 servers in 90 seconds, but scaling file storage still takes 3 days?
November 5, 2025 at 4:28 PM
Why can we spin up 1000 servers in 90 seconds, but scaling file storage still takes 3 days?
Service availability 101:
November 4, 2025 at 4:34 PM
Service availability 101:
You are what you eat.
10 brain foods to grow as an engineer:
10 brain foods to grow as an engineer:
November 3, 2025 at 4:34 PM
You are what you eat.
10 brain foods to grow as an engineer:
10 brain foods to grow as an engineer:
Stop waiting for it to make sense.
November 2, 2025 at 4:28 PM
Stop waiting for it to make sense.
You can learn so much about software engineering just by watching "The Black Phone":
November 1, 2025 at 3:28 PM
You can learn so much about software engineering just by watching "The Black Phone":
where are the integration tests for this feature
October 31, 2025 at 3:32 PM
where are the integration tests for this feature
I've tested every voice API on the market.
Most sound like GPS navigation from 2010.
Except one:
Most sound like GPS navigation from 2010.
Except one:
October 30, 2025 at 3:34 PM
I've tested every voice API on the market.
Most sound like GPS navigation from 2010.
Except one:
Most sound like GPS navigation from 2010.
Except one:
Open-source AI coding tools just caught up.
Here’s how to use my favorite:
Here’s how to use my favorite:
October 29, 2025 at 3:33 PM
Open-source AI coding tools just caught up.
Here’s how to use my favorite:
Here’s how to use my favorite:
I spent 6 hours researching rendering frameworks.
I could have done it in 6 minutes:
I could have done it in 6 minutes:
October 28, 2025 at 3:26 PM
I spent 6 hours researching rendering frameworks.
I could have done it in 6 minutes:
I could have done it in 6 minutes:
You are what you eat.
10 brain foods to grow as an engineer:
10 brain foods to grow as an engineer:
October 27, 2025 at 3:27 PM
You are what you eat.
10 brain foods to grow as an engineer:
10 brain foods to grow as an engineer:
Day 1768 of my job:
Still didn't get to invert a binary tree 🤣
Still didn't get to invert a binary tree 🤣
October 26, 2025 at 3:30 PM
Day 1768 of my job:
Still didn't get to invert a binary tree 🤣
Still didn't get to invert a binary tree 🤣
Netflix's monolithic Flink job crashed at 5M events per second.
Here's what replaced it:
Here's what replaced it:
October 25, 2025 at 3:29 PM
Netflix's monolithic Flink job crashed at 5M events per second.
Here's what replaced it:
Here's what replaced it:
89% of developers are using AI.
But only 24% are designing APIs for AI agents:
But only 24% are designing APIs for AI agents:
October 24, 2025 at 3:26 PM
89% of developers are using AI.
But only 24% are designing APIs for AI agents:
But only 24% are designing APIs for AI agents:
Leetcode has more than 3525 coding questions.
But only a few make you learn the important patterns.
Here are 25 of my favorite questions that will help you pass tech interviews:
But only a few make you learn the important patterns.
Here are 25 of my favorite questions that will help you pass tech interviews:
October 23, 2025 at 3:26 PM
Leetcode has more than 3525 coding questions.
But only a few make you learn the important patterns.
Here are 25 of my favorite questions that will help you pass tech interviews:
But only a few make you learn the important patterns.
Here are 25 of my favorite questions that will help you pass tech interviews:
Bad MCP practices:
October 22, 2025 at 3:26 PM
Bad MCP practices:
The difference between async and defer (explained with visuals):
October 21, 2025 at 3:30 PM
The difference between async and defer (explained with visuals):
You are what you eat.
10 brain foods to grow as an engineer:
10 brain foods to grow as an engineer:
October 20, 2025 at 3:28 PM
You are what you eat.
10 brain foods to grow as an engineer:
10 brain foods to grow as an engineer:
I follow 2 rules for meetings.
Most people ignore both:
Most people ignore both:
October 19, 2025 at 3:27 PM
I follow 2 rules for meetings.
Most people ignore both:
Most people ignore both: