Although I haven't tried to put the pieces together to do this, I
_think_ the pieces are:
1. It's easy to make a "REPL server". Following the early sections of
the tutorial from https://docs.racket-lang.org/more/index.html you
could something like the following. (For production you might want to
go further into the tutorial and e.g. use custodians.)
(define (serve port)
(define listener (tcp-listen port 5 #t))
(let loop ()
(define (accept-and-handle listener)
(define-values (in out) (tcp-accept listener))
(parameterize ([current-input-port in]
2. When you connect to that REPL server, at its prompt you could use
`dynamic-rerequire` to (re)load your code.
As I mentioned on IRC last night before I had to run, one example of
wrapping up dynamic-rerequire is the racket-reloadable package:
I hope this helps a little? If not hopefully someone with more
hands-on experience could chime in.
(I love the idea of live-coding music and games! But how I actually
use Racket, my comfort zone is "version-controlled source files are
the single source of recreatable truth". So, I don't have a lot of
mileage with this.)
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