here wasn’t a truly modern, self-hosted equivalent to Day One or Apple Journal. Most alternatives were either general note apps or old abandoned projects. I really wanted to keep my thoughts and memories of my young family for ourselves.

I wanted something focused on journaling with:

- “On This Day” memories - Prompt-based journaling - A clean, minimal, distraction-free writing experience

So… I built my own: Journiv, a beautiful (at least I am trying to make it so), self-hosted, privacy-first journaling app with mood tracking, daily prompts, and meaningful insights. Journiv began as a deeply personal project, a way for me to capture memories, reflections, and the stories behind thousands of photos and videos of my fast-growing kids. What started as a tool for my own parenting journey has grown into something that fills a real gap in the self-hosting community.

If you’re curious, you can read the full story behind Journiv here: https://journiv.com/blog/the-story-behind-journiv

Thank you18:T55e,Hi HN,

I built PICA (Python-based Instrument Control and Automation), an open-source software suite designed to handle complex lab measurement instruments and automate experimental workflows. It is a lab-tested, physically accurate alternative to proprietary solutions like LabVIEW.

What it does: PICA provides a professional dashboard to orchestrate high-precision hardware (Keithley SourceMeters, Lakeshore Controllers, LCR Meters) for materials science research. It automates protocols like I-V sweeps, Resistivity vs. Temperature, and Pyroelectric measurement loops.

Key Features:

    Open Source & GUI: Includes a full graphical interface for setting parameters and running experiments, making it accessible to researchers without coding experience.

    Process Isolation: Uses a multiprocessing architecture to run instrument control loops in isolated processes. This ens

Show HN: SecuriNote – Create shared ephemeral, client-side encrypted notebooks