Articles
Practical notes on computational chemistry, spectroscopy, Linux, single-board computers, and the small tools that connect them.
43 entries
01TD Force Calculation — "Linear Angle in Bend" Error
Fixing Gaussian's "Linear angle in Bend" error in TD force calculations for the IDT–ZnP triplet state using Geom=(Checkpoint,GIC) instead of the default redundant internal coordinates.
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02Introducing XFlow
Browse video and image posts from X in a full-screen vertical feed with pre-caching, subscriptions, profiles, and persistent position.
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03Ranking WireGuard Configurations by Speed
Connect each VPN configuration in turn, run download and latency tests, and write a fastest-first JSON report.
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04A Notebook Workflow for Whisper Subtitles
Revisit a Jupyter-based video transcription workflow built around the original OpenAI Whisper implementation.
Read note05Batch Subtitles with whisper.cpp
A PowerShell workflow that extracts audio with FFmpeg and transcribes a directory of videos through a local whisper.cpp build.
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06Grouping Videos with Wails and FFmpeg
Scan a directory, generate visual thumbnails, select related videos, and move them together from a lightweight desktop app.
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07A Remote Dashboard for Termux API
Monitor and control an Android device from a responsive React dashboard connected to the authenticated termux-api-http backend.
Read note08Exposing Termux API Features over HTTP
Wrap Android battery, network, location, notifications, communication data, and device actions in an authenticated Node.js API.
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09Analyzing Transient Absorption Data in Jupyter
Correct, inspect, fit, and export two-dimensional transient absorption matrices for Glotaran and pyglotaran workflows.
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10Introducing SubagentHub
Discover, configure, convert, install, update, and audit coding-agent definitions across nine agent harnesses.
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11Introducing StashFlow
Browse, play, search, and maintain a self-hosted Stash library from Android, desktop, or a limited web demo.
Read note12Batch-Embedding SRT Subtitles
A tiny Python utility for pairing SRT subtitle files with M4V videos and embedding them in bulk.
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13Introducing ScreenGPT
Capture the screen with a hotkey and send it with custom prompts to an OpenAI-compatible vision-language API.
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14Building Pico-Controlled Smart Lights
Combine presence sensing, an OLED menu, saved modes, WS2812 LEDs, buttons, and a second Pico for infrared control.
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15Reading a TCD1304 CCD with an RP2040
Drive a 3,648-pixel linear CCD from a Raspberry Pi Pico, stream CRC-checked frames, and inspect spectra in live desktop viewers.
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16Building Stooq-Style Daily Data from Robinhood
Backfill and incrementally update US, ADR, and Robinhood-wide OHLCV datasets as text trees and indexed SQLite databases.
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17Introducing ResRam_NG
Interactively simulate and fit resonance Raman excitation profiles with a responsive Python GUI and optional Rust acceleration.
Read note18ResRamQt: The Archived PyQt Interface
A historical PyQt6 interface for fitting Raman excitation profiles, now superseded by ResRam_NG.
Read note19ResRAM Rebuilt in Rust
Fit resonance Raman excitation profiles with an optimized Rust engine, a headless CLI, and a modern Tauri desktop interface.
Read note20The Original resRam Lineshape Tool
A concise look at the original command-line optical-lineshape analysis code and the input files behind the later ResRAM applications.
Read note21Plot Raman Spectra from Gaussian 16
Extract resonance and non-resonance Raman data from Gaussian output, broaden the lines, compare spectra, and export CSV files.
Read note22Extract and Plot LModeA Output
Turn LModeA 3.0 text output into CSV datasets, grouped local-mode contributions, stacked plots, and an auditable group report.
Read note23A Dedicated Pico IR Receiver
Use a second Raspberry Pi Pico and VS1838B receiver to decode remote-control signals and forward commands over UART.
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24Introducing pic-viewer
A lightweight Wails desktop viewer for moving quickly through images across deeply nested folder trees.
Read note25Reading an MLX90614 Sensor with MicroPython
Wire a GY906 infrared temperature sensor to a Raspberry Pi Pico and read it over I2C with MicroPython.
Read note26Driving an ST7567S LCD from MicroPython
Connect a GM12864-59N 128×64 I2C display to a Raspberry Pi Pico and drive it with a small MicroPython module.
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27Merge Picture Folders with PySide6
A desktop GUI for browsing, previewing, and merging nested image folders without freezing the interface during file operations.
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28Introducing MergeFoldersDocker
Merge image folders on a remote server through a guarded web UI with thumbnails, collision policies, and live progress.
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29Self-Hosting a Multiplayer Mahjong Table
Run a responsive online Mahjong game with private rooms, human players, heuristic bots, reconnectable sessions, and Docker Compose.
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30Introducing LLM Wiki Viewer
Serve the llm-wiki layer of an Obsidian vault as a searchable, read-only website from one Docker container.
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31Introducing Invisible Archive
Browse, search, thumbnail, and stream files inside ZIP archives without extracting them onto your NAS.
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32Organize Photos by Similarity with groupImg
Use k-means clustering to divide an unwieldy image collection into smaller groups of visually similar files.
Read note33Introducing ExplicitUtil
A Python CLI for repetitive media-library work: transcription, conversion, metadata, renaming, grouping, merging, and archives.
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34Introducing Avogadro Browser
Run the legacy Avogadro 1.2 molecular editor in Docker and reach its desktop interface from a web browser.
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35Introducing RecallWhisper
Use RecallWhisper for private Android voice capture, local search, and summaries, then connect it to self-hosted OpenASR and llama.cpp APIs.
Read note36Introducing TeleConvert
Turn idle Linux and macOS machines into a parallel video-transcoding pool using SSH, ffmpeg or HandBrakeCLI, and one YAML file.
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37Marcus Theory Rate
Interactive Marcus electron-transfer rate plotted against reaction free energy.
Read note38Intro to DFT computation
An introduction to Density Functional Theory (DFT) computation.
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39Run Qbittorrent on Milk-V Duo 256M
Learn how to run Qbittorrent, a popular open-source torrent client, on the compact RISC-V board (Milk-V Duo 256M).
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40Run Samba Server on Debian
Learn how to set up and run a Samba server on the Milk-V Duo 256M running Debian.
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41Debian forced fixed MAC address
Learn how to set a fixed MAC address for the Ethernet interface on Debian.
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42Install Debian on Milk-V Duo 256M
The Milk-V Duo 256M is a compact and affordable single-board computer (SBC) designed for embedded applications, IoT projects, and hobbyist use. This guide explains how to install Debian on the board and access it via SSH over Ethernet.
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43Use Yazi on Milk-V Duo 256M
Learn how to run Yazi, a high-speed CLI file explorer written in Rust, on a compact RISC-V board (Milk-V Duo 256M).
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