frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

fp.

Show HN: I built an interactive HN Simulator

https://news.ysimulator.run/news
4•johnsillings•2h ago•0 comments

Show HN: Cynthia – Reliably play MIDI music files – MIT / Portable / Windows

https://www.blaizenterprises.com/cynthia.html
72•blaiz2025•5h ago•17 comments

Show HN: I built an interactive map of jobs at top AI companies

https://map.stapply.ai
5•kalil0321•1h ago•1 comments

Show HN: New Systems Programming Language with Builtin Parallelism and No GC

https://axelang.org/
3•death_eternal•1h ago•0 comments

Show HN: Runbooks – Shareable Claude Code Sessions

https://www.aviator.co/runbooks
4•ankitdce•1h ago•0 comments

Show HN: Virtual SLURM HPC cluster in a Docker Compose

https://github.com/exactlab/vhpc
44•ciclotrone•5d ago•10 comments

Show HN: Stun LLMs with thousands of invisible Unicode characters

https://gibberifier.com
179•wdpatti•16h ago•94 comments

Show HN: I wrote a minimal memory allocator in C

https://github.com/t9nzin/memory
125•t9nzin•21h ago•29 comments

Show HN: Gitlogue – A terminal tool that replays your Git commits with animation

https://github.com/unhappychoice/gitlogue
149•unhappychoice•6d ago•19 comments

Show HN: Sphere-Base-One– A Python Kernel for Integer-Based Physics Optimization

https://github.com/universal-steward/hahn-optimization-core
3•zakthehahn•3h ago•1 comments

Show HN: Pg-aiguide – Write better PostgreSQL code with AI

https://github.com/timescale/pg-aiguide
3•cevian•4h ago•0 comments

Show HN: Numr – A Vim-style TUI calculator for natural language math expressions

https://github.com/nasedkinpv/numr
4•nasedkinpv•5h ago•0 comments

Show HN: I made a tool to export TikTok comments

https://exporttok.com
4•jackemerson•5h ago•1 comments

Show HN: Pulse-Field – O(N) AI Architecture (12x faster than Transformers)

https://github.com/makimilan/pulse-field-core
5•makimilan•6h ago•8 comments

Show HN: Build the habit of writing meaningful commit messages

https://github.com/arpxspace/smartcommit
107•Aplikethewatch•1d ago•129 comments

Show HN: WireMD – Design Wireframes in Markdown

https://wiremd.dev/
6•akonan•7h ago•3 comments

Show HN: I built an LLM powered receptionist for website chats

https://receptionst.com/
11•teemingdev•7h ago•3 comments

Show HN: Forty.News – Daily news, but on a 40-year delay

https://forty.news
431•foxbarrington•2d ago•171 comments

Show HN: Flag Waver, create and simulate realistic waving flags online

https://flagwaver.org
4•star98•10h ago•1 comments

Show HN: Wealthfolio 2.0- Open source investment tracker. Now Mobile and Docker

https://wealthfolio.app/?v=2.0
668•a-fadil•3d ago•212 comments

Show HN: Built a tool solve the nightmare of chunking tables in PDF vs. Markdown

https://github.com/2dogsandanerd/smart-ingest-kit
9•2dogsanerd•1d ago•0 comments

Show HN: I built a CLI tool to map your codebase for LLMs

https://github.com/JordanCoin/codemap
4•jordancj•11h ago•2 comments

Show HN: Simulating the vacuum as a superfluid to derive Alpha = 1/137

https://github.com/moseszhu999/geometric-vacuum-sim
5•moseszhu•12h ago•1 comments

Show HN: I built a wizard to turn ideas into AI coding agent-ready specs

https://vibescaffold.dev/
68•straydusk•1d ago•37 comments

Show HN: WeatherOrNot a maximal weather app in the terminal

https://james-see.github.io/weatherornot/
6•jamescampbell•13h ago•0 comments

Show HN: I built a free kids coloring site with AI

https://happykidscoloring.com/en
7•daimajia•14h ago•10 comments

Show HN: SitStand – Control your standing desk from the command line

https://gregraiz.com/blog/sitstand-bluetooth-desk-controller/
8•graiz•15h ago•0 comments

Show HN: 3M km interferometer concept using Saturn moons

https://zenodo.org/records/17665935
3•kurtswendson•17h ago•1 comments

Show HN: Ontology-driven knowledge graph extraction from text

9•cybermaggedon•8h ago•0 comments

Show HN: PolyGPT – ChatGPT, Claude, Gemini, Perplexity responses side-by-side

https://polygpt.app
26•ncvgl•2d ago•23 comments
Open in hackernews

Show HN: Cynthia – Reliably play MIDI music files – MIT / Portable / Windows

https://www.blaizenterprises.com/cynthia.html
72•blaiz2025•5h ago
Easy to use, portable app to play midi music files on all flavours of Microsoft Windows.

Brief Background - Used midi playback way back in the days of Windows 95 for some fun and entertaining apps, but as Windows progressed, it seemed their midi support (for Win32 anyway) regressed in both startup speed and reliability. Midi playback used to be near instant on Windows 95, but on later versions of Windows this was delayed to about 5-7 seconds. And reliability became somewhat patchy. This made working with midi a real headache.

Cynthia was built to test and enjoy midi music once again. It's taken over a year of solid coding, recoding, testing, re-testing, and a lot more testing, and some hair pulling along the way, but finally Cynthia works pretty solidly on Windows now.

Some of Cynthia's Key Features: * 25 built-in sample midis on a virtual disk - play right out-of-the box * Play Modes: Once, Repeat One, Repeat All, All Once, Random * Play ".mid", ".midi" and ".rmi" midi files in 0 and 1 formats * Realtime track data indicators, channel output volume indicators with peak hold, 128 note usage indicators * Volume Bars to display realtime average volume and bass volume levels * Use an Xbox Controller to control Cynthia's main functions * Large list capacity for handling thousands of midi files * Switch between up to 10 midi playback devices in realtime * Playback through a single midi device, or multiple simultaneous midi devices with lag and channel output support * Custom built midi playback engine for high playback stability * Custom built codebase for low-level work to GUI level * Also runs on Linux/Mac (including apple silicon) via Wine * Smart Source Code - compiles in Borland Delphi 3 and Lazarus 2 * MIT License

YouTube Video of Cynthia playing a midi: https://youtu.be/IDEOQUboTvQ

GitHub Repo: https://github.com/blaiz2023/Cynthia

Comments

tosti•5h ago
Calling a program portable by virtue of wine being a thing defies logic. That said, nice work. Midi instrument input is on my wishlist.
ale42•5h ago
Maybe it's "portable" in the sense that it's just an executable to launch, with no installation needed? I don't think they claim it is multi-platform.
6581•4h ago
"* Also runs on Linux/Mac (including apple silicon) via Wine *"
Krssst•3h ago
Their website makes their definition of portable very clear in "What makes a portable app special?".

It's quite clear they mean more a (much) stricter variation of the "no installation" definition than the "easily buildable on other OS" definition. Though they do mention execution under translation environments as a requirement.

jjmarr•5h ago
Wine MIDI doesn't work, so it's a big advantage.
SergiusHN•4h ago
Portable and cross-platform are not synonymous. Being developed with the Wine in mind and being a standalone app are two unrelated features.

https://www.blaizenterprises.com/cynthia.html#help--what-mak...

ksherlock•4h ago
I'd guess approximately nobody does it, but with winelib you can do a native compile and link.
internet2000•3h ago
Yeah, very nice app, but it's weird to target Windows as the primary OS.
karmakaze•3h ago
There were companies that specialized in 'porting' games to Mac using/packaging Wine long ago. It was certainly effective in the Intel Mac days and newer CPUs can certainly run software that predates that well. Heck browsers can run OSes and games in JS/Wasm.
ale42•5h ago
In the days of Electron bloatware, it's refreshing to see a program that is so light in terms of size. Unfortunately, at least on a 4K screen, the interface is a bit laggy and it uses a lot of CPU.
braebo•3h ago
A web app would have been cross platform (including just web), had a superior UI (in both speed and UX) — and with a less bloated Electron alternative like Tauri — better in just about every way that matters.
luc_•5h ago
Finally, don't have to remember the UMRN for Camptown Races anymore.
baal80spam•5h ago
Type: Desktop App (Standard Edition)

This is (pun intended) music to my ears!

xcf_seetan•4h ago
It has a freepascal/lazarus project file, so it can be compiled for a lot of platforms, i don't about midi drivers on those platforms, so midi could not work or need more code.
mock-possum•3h ago
My first thought was “what’s wrong with foobar?”

Then I saw the instrument / note grid, and the keyboard UI - this looks fun!

zahlman•3h ago
Wow, it's been a long time since I saw Pascal code.
bitwize•3h ago
Feature suggestion: Optional OPL3 simulation, so that CANYON.MID can be heard as God intended.