CHchristianbryant·Jul 18, 2018Submission
Arc/Nu – Rewrite of Arc 3.1 in Racket – Faster and More Features
3 points · Open discussionarclanguage
arc-nu
Arc2015–2018
arclanguage / arc-nu
arc-nu
Rewrite of Arc 3.1 with more features, more speed, and bug fixes. Still compatible with Arc 3.1.
3Distinct people
3Mentions
0Explicit recommenders
49GitHub stars
What to know before exploring
What it is
Rewrite of Arc 3.1 with more features, more speed, and bug fixes. Still compatible with Arc 3.1.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year3 dated mentions
Observed mentions: 2015-08-12 16:42:51 UTC to 2018-07-18 16:24:09 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 1 | 1 | 0 |
What Hacker News says
3 sourcesThat's not the code that currently runs hn - AFAIK it's the code that ran hn at some distant point in the past. I'm not quite sure what's the best current path for those that want to run their own hn, on (something similar to) arc probably anarki?:
https://github.com/arclanguage/anarki
Possibly arc-nu?:
https://github.com/arclanguage/arc-nu
At least it appears arc3.1 runs under racket (not sure how long that's been the case, but presumably for a while):
$ racket -v
Welcome to Racket v6.1.
$ wget http://ycombinator.com/arc/arc3.1.tar
$ tar xf arc3.1.tar
$ cd arc3.1/
$ echo admin > arc/admins
# WARNING: running random code from the Internet
# downloaded over an insecure link is not a good idea!
# But a checkout from https://github.com/wting/hackernews.git
# *failed* to run under racket...
$ racket -f as.scm
Use (qui
Read the rest
t) to quit, (tl) to return here after an interrupt.
arc> (load "news.arc")
nil
arc> (nsv)
rm: cannot remove ‘arc/news/story/*.tmp’: No such file or directory
load items:
ranking stories.
ready to serve port 8080
I don't know if https://github.com/wting/hackernews.git is a reflection
of the updated hn source - I don't think it is. For one thing, if we
look at:
http://arclanguage.org/item?id=19174
"Ask Arc: How to add a toplabels in news.arc?"
> On Hacker News, the ask and show pages are implemented just like the
> front page, but they filter the item list based on title or whether or
> not there's a link.
>
> And yes, that means they won't show items not already loaded into RAM ;)
(defop ask ((p page))
(pagepage ranked-stories* p
[and (askpage-filter _) _]
"ask" "Ask"))
> The magic is in askpage-filter:
(def askpage-filter (s)
(and (astory s)
(blank s!url)
(~begins (downcase s!title) "show hn")))
There's no -filter, in the github repo:
https://github.com/wting/hackernews/search?utf8=&q=-filter&t...
A more developed variant with these goals, that got discussed a fair bit in the arc forum, is https://github.com/arclanguage/arc-nu. It hasn't received much kicking on wheels by anyone other than its author(s), though, so be prepared for some rough edges if you decide to try it out. In the long term I think it might be much nicer than the original prototype.
(Disclosure: I'm one of the owners of the https://github.com/arclanguage community. Also check out https://arclanguage.github.io, which is a more up-to-date statement of the Arc state of the world.)
In Rark: A Racket language inspired by Arc