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S M Tahosin Subscriber

Full-stack developer building AI-powered tools that are free, fast, and actually useful. Creator of Hocks AI & PromptCraft AI. I ship products, write about AI/web dev, and open-source everything.

Education

Rajshahi College (HSC)

Pronouns

he/him

Work

Independent

8 Week Community Wellness Streak
Google I/O 2026 Writing Challenge Winner
Java
4 Week Community Wellness Streak
100 Thumbs Up Milestone
OpenClaw Challenge Completion Badge
2 Week Community Wellness Streak
DEV Weekend Challenge Completion
1 Week Community Wellness Streak
Writing Debut
I Replaced 200 Threads With 10,000. Java Finished 13.5x Faster.

Low overhead for blocking tasks

I Replaced 200 Threads With 10,000. Java Finished 13.5x Faster.

73
Comments 16
7 min read

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I Added a 71-Line Black Box to My Python Agent, Then Queried the $200 Crash With DuckDB

Reconstructing the agent decision path

I Added a 71-Line Black Box to My Python Agent, Then Queried the $200 Crash With DuckDB

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Comments 34
9 min read
My GitHub Graveyard has 27 dead projects. Here is the brutal truth about why.

The trap of over-engineering stacks

My GitHub Graveyard has 27 dead projects. Here is the brutal truth about why.

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Comments 100
3 min read
5 Free AI APIs You Can Use Today (No Credit Card Required)

5 Free AI APIs You Can Use Today (No Credit Card Required)

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Comments
1 min read
Why OpenClaw Skills Are the Most Underrated Feature in Personal AI

OpenClaw Challenge Submission 🦞

Why OpenClaw Skills Are the Most Underrated Feature in Personal AI

66
Comments
3 min read
EcoSense AI: Know Your Carbon Footprint in 60 Seconds

DEV Weekend Challenge: Earth Day

EcoSense AI: Know Your Carbon Footprint in 60 Seconds

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Comments 3
3 min read
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