unix-v6
pqm
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unix-v6
- Unix Edition Zero
- Você pode pensar o Browser em desenvolvimento web como o Kernel é pro nativo
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The oldest software still used/maintained today that runs on GNU/Linux?
Here's the proof. https://github.com/memnoth/unix-v6/blob/master/source/s1/bc.y I'm going to try to see if this still compiles
- Do not use redirection characters in your shell prompt
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GNU Units
You are probably right.
The one in FreeBSD is from NetBSD: https://svnweb.freebsd.org/base/head/usr.bin/units/units.c?v...
The NetBSD version is from Adrian Mariano: http://cvsweb.netbsd.org/bsdweb.cgi/src/usr.bin/units/units....
The one in Plan9 is in yacc: http://9p.io/sources/plan9/sys/src/cmd/units.y
This GitHub repo claims to be V6: https://github.com/memnoth/unix-v6/blob/master/source/s2/uni...
pqm
- A better/faster JavaScript library for physical math
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Ask HN: Show your failed projects and share a lesson you learned
I made a spreadsheet add-on similar to the pint library for python (dimensional analysis) based on my own open source JS library (https://github.com/GhostWrench/pqm). Website is still up: https://ghostwrench.net/convertplus.html.
To me it seemed like the perfect way to get a solo app up and running because Google was going to run all the sever stuff and I could just cash in. The app never really got off the ground and by the time I realized that Big G really doesn’t want to make it easy for any schmuck to run a profit generating app using their servers and their technology and it wasn’t worth the maintenance effort to keep up with the constant requests to update the app. I think it is no longer available on the GSuite store as of a few months ago. I think my biggest mistakes were as follows:
1) I needed a business/marketing oriented co-founder. I underestimated how difficult that job is and overestimated my ability to do it.
2) I wanted to charge too much for the app. I didn’t want to undersell myself and get caught in a trap of not making enough to keep up with maintenance. I went too far the other way. I think maybe a $50-$60 on time charge would have been appropriate, instead of requiring a subscription. This is an easy fix, but I would had to re-do my marketing effort and see #1
3) Built before I tested the market. I convinced myself that just asking a few of my engineering friend would use it was enough. Again, this is probably a symptom of #1
4) I was mentally unprepared to deal with failure and I lost motivation to keep working on the project when things didn’t go as I expected.
5) I underestimated how much people actually use spreasheet add-ons. There really isn’t a thriving market and most of the really popular apps are a utility attached to another popular standalone project.
6) Probably should have targeted Excel rather than Sheets, because the market is simply bigger.
I think if the stars align, I would like to give this project another go. I don’t think it has totally failed rather than just gone dormant, but I need a better strategy for round 2!
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GNU Units
There are heaps of libraries for all languages because it is a fairly fun and straight forward project. I personally created this one because I was frustrated with how slow and clunky the existing javascript libraries were:
https://github.com/GhostWrench/pqm
Also, I open sourced just the unit database (in JSON format) for anyone interested in making their own version:
https://github.com/GhostWrench/unitdb
What are some alternatives?
illumos-gate - An open-source Unix operating system
Ruby Units - A unit handling library for ruby
uom - Units of measurement -- type-safe zero-cost dimensional analysis
lasercrabs - Abandoned hybrid singleplayer/multiplayer shooter project formerly known as DECEIVER
gnu-units - GNU Units (mirror)
boltstream - Boltstream Live Video Streaming Website + Backend
Unitful.jl - Physical quantities with arbitrary units
theme-bobthefish - A Powerline-style, Git-aware fish theme optimized for awesome.
insect - High precision scientific calculator with support for physical units
Flythrough.Space - Top down space captain RPG