Hi, I'm Deepu K Sasidharan 👋
Polyglot developer · Local AI tinkerer · Creator of LlamaStash, KDash and JDL Studio · Co-chair of JHipster · Linux enthusiast · Java Champion · Published author · International speaker
Open-source projects
Latest writing
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Qwen3.8-Flash-Next vs Claude Opus 5.5: Six-way benchmark on a real Rust feature
A controlled comparison of Qwen3.8-Flash-Next and Claude Opus 5.5 on one LlamaStash feature, across Claude Code and Pi, at medium and xhigh effort

Forget Claude Code. All you need is Qwen3.8-Flash-Next running locally for agentic coding
Agentic coding on a Strix Halo laptop with Qwen3.8-Flash-Next. Going head to head with Opus 5.5

Can Qwen 3.8 running on your laptop really replace Claude Opus for Agentic coding?
Agentic coding on a Strix Halo laptop with Qwen3.8-27B and Flash-Next, the LlamaStash and Pi setup behind it, and the tuning

Introducing LlamaStash: a zero-overhead, terminal-native llama.cpp launcher
A fast TUI, CLI, daemon, and OpenAI-compatible proxy for running local LLMs via llama.cpp, in one Rust binary
Bio
Full CV →- Principal Developer Advocate at Auth0 (Okta), covering identity for AI agents. 16+ years in the industry, before that at Adyen, XebiaLabs, and TCS.
- Creator of LlamaStash, KDash, JWT UI, and JDL Studio. Most of it is Rust, most of it runs in a terminal.
- Co-chair and vice-president of JHipster, a core maintainer since 2015.
- Java Champion and author of Full Stack Development with JHipster (Packt, two editions).
- I run local models for my daily coding setup and write up the benchmarks and the tuning that made it usable. See the local AI posts.
- 80+ conference talks. Event list.
- Long-time Linux user, currently on Arch with Niri.
Featured

Introducing LlamaStash: a zero-overhead, terminal-native llama.cpp launcher
A fast TUI, CLI, daemon, and OpenAI-compatible proxy for running local LLMs via llama.cpp, in one Rust binary

My fully offline AI-assisted Linux development machine
My Arch Linux, Niri, and local AI coding setup on the ASUS ROG Flow Z13

My sleek and modern Linux development machine in 2021
The 2021 refresh of my GNU/Linux development machine: hardware, distribution and desktop, development tools, and productivity tools.

My second impression of Rust and why I think it's a great general-purpose language!
My second impression of Rust, after building a real-life use case with it and my thoughts on why it is a great general-purpose language for the future.

The state of Linux as a daily use OS in 2021
Let's see what is the state of GNU/Linux, for daily use, in 2021 is and if its a viable alternative to Windows and macOS

Concurrency in modern programming languages: Introduction
Building a concurrent web server in Rust, Go, JS, TS, Kotlin, and Java to compare concurrency performance
Deep-dive series
All series →Upcoming events
All events →Nothing on the calendar right now. Check the past events list, or follow me on Linkedin for the next announcement.