norns.el (Emacs ❤️ norns)

eigen · 2022-02-09T08:19:57.745Z

well, first of all learning Emacs is a journey. it’s way more than an editor but a platform for creating text-based apps.

you don’t simply open Emacs and have a working editor right off the bat…

haha, no, you have to make it your own!

don’t expect to get into Emacs without learning elisp (it’s “configuration” language, which is a full-fledged scheme-like lisp).

i personally started w/ “vanilla” Emacs (blank configuration) and tweaked it progressively along the years but have heard that prelude provides a good starting experience.

it’s not much harder than learning lua + norns scripting imho, but familiarity w/ any lisp dialect sure helps.

for elisp, this is the best learning material i’ve found:

caiorss.github.io

Emacs In a Box

Emacs in self-contained box!

for general usage, i guess youtube tutorials might be better suited.

eigen · 2022-02-09T20:39:22.735Z

just pushed some code.

we now have sc REPL support (+ a few bugfixes).

eigen · 2022-02-10T22:06:43.208Z

added norns-restart (whole norns stack) and norns-reboot (OS) helpers.

;restart inside a running maiden-repl also works, and aggressively binds to maiden to get lua startup logs.

xmacex · 2022-02-10T23:08:29.853Z

Just a comment and not a suggestion/distraction from going through Maiden, but my setup for messing with the SuperCollider engine has been simply from the normal scel.el. I haven’t got the handshake super smoothed out, but works fine. It involves increasing maxLogins, a Server.connect and reassigning s. Then livecoding with SynthDefs and Pattern may commence.

zebra · 2022-02-11T00:53:32.835Z

That’d a different use case though, if I understand correctly. You are describing connecting to the norns scsynth server from a separate instance of the sclang interpreter on your machine.

When you use the norns websockets you can interact directly with the norns SC classes and engines in the norns sclang, which is useful for engine development.

xmacex · 2022-02-11T07:35:24.424Z

Yes that’s right, hence “just a comment” about Emacs ⇆ SuperCollider on norns.

eigen · 2022-02-12T10:52:17.239Z

added 2 new things:

pretty print variable at point with command norns-maiden-inspect-symbol
toggle keys & encoders remotely (through OSC)

please note that you’d have to make (temporarily) your var global in order to pretty print it.
it dynamically injects inspect.lua to pretty print even nested data structures.

eigen · 2022-03-13T22:56:53.535Z

the package is now on MELPA, so easier to install.

also did various fixes (notably ;restart under a REPL restarts only this REPL instead of everything).

xmacex · 2022-04-22T21:11:10.765Z

Loading with use-package or load-library gives me a “Specified time is not representable” from

165066136712317281182279744632501920×907 167 KB

Please don’t hesitate to ask if I could help with something eg. info, triage or testing.

eigen · 2022-04-22T21:39:22.149Z

~~alright, really quick test then.~~

~~does evaluating this elisp (e.g. in your *scratch*buffer) throw an error?~~

~~(encode-time '(0 0 0 1 1 1900 nil nil t))~~

EDIT: didn’t spot that it was the exact line Emacs was complaining about in your photo.

arf, i spotted that the standard osc package (which i only depend on as a “bonus” for triggering buttons / encoders remotely) does some unholy stuff (negative unix timestamps).

it works on my x86_64 Linux station but i had to fork the lib in my Windows install, and it appears ARM builds don’t like that either.

guess i’ll remove the dep and submit a bug report (which is cumbersome for Emacs “standard” packages IIRC).

EDIT2: done

@xmacex you may have to delete the ~/.emacs.d/elpa/norns-<version> folder to remove the error and force package.el to refetch the package at startup.

xmacex · 2022-04-23T20:11:47.664Z

Thanks, that worked and norns.el now loads on Emacs on the device. The (encode-time) indeed was the issue, that same ELisp statement works fine on my Emacs on Android under Termux. Strange!

This is very cool

IMG_20220619_2146241920×1920 454 KB

With sequins and lattice and on-device Emacs and MIDI cc this is a bunch of fun.

Riser note stuck on Digitone since yesterday, everything else is sequins+lattice driving OP-Z as a sampler with tight looping envelopes as a kind of a wavetable synth.

eigen · 2022-07-06T20:36:04.483Z

small update worth noting: now support for jacking in a running dockerized norns w/ new commands norns-docker-maiden-repl & norns-docker-sc-repl.

please note that for now it only works when docker is colocalized w/ Emacs (both instance run on the same host). it requires additional dependency docker-tramp.

(PS: i just pushed so should take an hour or two for MELPA to catch up)

@xmacex only just spotted the update to your last post. this is super kewl!

xmacex · 2023-06-29T20:10:06.301Z

Is this in use for some people maybe? norns-restart works, but other commands give

websocket-open: norns/5555 nodename nor servname provided, or not known

in Emacs. My intent was to wrestle Wobblewobble to give MIDI cc output. I have Emacs running on the desktop, Tramp connection to norns over a WIFI.

eigen · 2023-06-29T20:35:12.343Z

this seems to be Mac specific… i’ve only ever tested on Linux & Windows box so can’t easily reproduce.

did it ever work from your Mac?

if so this suggest killing the mDNSResponder process (for it to restart).

xmacex · 2023-06-29T22:31:04.542Z

I think it did, but I’m on new computer. Strange, I thought it was coming from Emacs not OS. Will investigate…

eigen · 2023-06-29T22:44:55.691Z

when you google the “nodename nor servname provided, or not known” error, you can see it’s a pretty low-level one, bellow the scope of

another possibility would be a non standard mDNS domain (tweakable w/ norns-mdns-domain).

does accessing http://norns.local/ work from your browser? if not, it’s the “local” part that’d need to be tweaked.

you could try using “lan” which is another generally valid value:

(setq norns-mdns-domain "lan")

xmacex · 2023-06-30T06:08:23.327Z

Yep that’s the address on the browser as usual, and the file I am looking at in Emacs is also on norns.local via tramp over ssh. I’ll see if using the IP address works, and what’s up with the resolver. Like said norns-restart somehow worked. I’ll figure it out.

eigen · 2023-06-30T08:40:49.820Z

norns-restart uses ssh and not websocket, that’s why it’s working and not the other commands.

xmacex · 2023-07-03T16:52:51.776Z

If my rusty Emacs Lisp is not misleading me, norns--core-curr-host chops the value of norns-mdns-domain from the hostname on line 248 whenever we are editing a remote file.

github.com

p3r7/norns.el/blob/master/norns.el#L238C32-L249


      
          (defun norns--core-curr-host ()
            "Get current hostname (for maiden / sc).
          Defaults to \"localhost\" if not a TRAMP path."
            (cond
             ((and (file-remote-p default-directory 'host)
                   (s-starts-with? "/docker:" default-directory))
              (concat "localhost." norns-local-mdns-domain))
          
          
   (t
              (let* ((remote-host (--> (file-remote-p default-directory 'host)
                                       (s-chop-suffix (concat "." norns-mdns-domain) it))))
                (or remote-host "localhost")))))

M-x norns-maiden-send RET print("hi") RET

norns/5555 nodename nor service provided, or not known

However if I comment out that line 248 (and rebalance the parentheses)))), norns-maiden-send does what I expect.

M-x norns-maiden-send RET print("hi") RET

hi
<ok>

maiden>>

Also the REPL works just fine.

On my Android wifi hotspot I can get to norns.local just fine from browser, SSH or TRAMP, but there is no such host as norns without the domain. Same behavious whether I run Emacs on macOS or on Android in Termux, and open a file on norns over TRAMP.

I am either not properly configured, or I am missing the rationale for chopping the domain…

Meta: would this be better discussed on GitHub issues?

Anyway, great fun live-coding sequins to change parameters while scripts is running.

eigen · 2023-07-03T19:42:30.739Z

mhm, good catch.

i may have had a good (albeit platform-specific or network setup-specific) reason to do this suffix removal at this stage, but it’s weird i don’t add it back later when doing the ws connection…

moving the convo to github would be nice esp. to track the rationale associated w/ the changes. can you create any issue w/ a copy pasta of the details?