New·7 min read
Mullion FileMan: A Dual-Pane File Manager and a Set of Folder Tools
Mullion FileMan: a C++17 dual-pane terminal file manager, twenty folder_* CLI tools for comparing and syncing folders, and an MCP server for AI agents.
Lead AI Engineer · Writing since 2016
Hi, I'm Sina. I build and train AI systems.
Lead AI Engineer. I write about reinforcement learning, transformers, multi-agent systems, and the tools I build along the way.
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Latest writing
Full archive →·6 min·Programming
Redthread: Portable, Git-Backed Memory for AI Coding Agents
Redthread keeps AI coding agent memory in a git repo and serves it over MCP, so Claude Code and other agents keep their context across machines.
·3 min·Deep RL with Unity 3/3
DDPG on Reacher: Twenty Arms Chasing a Balloon
Solving Unity's Reacher with DDPG: twenty robot arms sharing one replay buffer, the actor-critic setup, and why it trained so much easier than Tennis.
·3 min·Deep RL with Unity 2/3
Two DDPG Agents Learning to Play Tennis
Two DDPG agents learning to rally in Unity's Tennis environment: continuous actions, sparse shared rewards, what didn't work, and the settings that solved it.
·2 min·Deep RL with Unity 1/3
Training a DQN Agent to Collect Bananas in Unity
Training a DQN agent on Unity's Banana Collector: the Q-network, replay buffer and target network settings, and how it solved the task (+13 over 100 episodes).
·2 min·Learn SSH 3/3
Learn SSH: Config File
Use the ~/.ssh/config file to connect to servers by name, with identity files, multiple hosts, ProxyJump through a jump server, and wildcard patterns.
·2 min·Learn SSH 2/3
Learn SSH: CLI Commands
The SSH commands I use most: connecting with a key or custom port, local and remote port forwarding, jump hosts with -J, and a SOCKS proxy with -D.
Read in order
Series
Multi-part guides that build on each other, start to finish.
Deep RL with Unity
3 parts- 01Training a DQN Agent to Collect Bananas in Unity
- 02Two DDPG Agents Learning to Play Tennis
- 03DDPG on Reacher: Twenty Arms Chasing a Balloon
Learn SSH
3 partsLAPACK on macOS
2 partsMS SQL on macOS
2 partsFrom the archive
All 15 posts by year →- Install the Latest Python on CentOS, Rocky Linux and RHEL4 min
- Learn SSH: Introduction to SSH on Unix-Based Systems2 min
- How to Install LAPACK on Mac OS1 min
- Write a Solver for Systems of Equations Using LAPACK on Mac OS4 min
- What Is My Gateway Address?2 min
- Asymmetric Static Routing Network Using Ubuntu Machines2 min
- MS SQL on macOS: Connect to Your Database Using Python3 min
- MS SQL on macOS: Use Oracle SQL Manager to Access Your Database1 min
New posts, no noise.
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