tweetnacl VS hissp

Because that product was an embedded system running on a very small SoC. It only had 1MB of flash and 192k of SRAM. It's theoretically possible to run CL on a system that small -- Coral Common Lisp ran on a Mac Plus with 1MB of RAM back in the 1980s -- but nothing off-the-shelf will do that today.

(I did, however, put a little Scheme interpreter on it as an easter egg :-)

I do have some CL code that supports the crypto project. The back-end for this:

https://stage.sc4.us/sc4/sc4tk.html

is written in CL (though all the actual encryption is done client-side in Javascript). I also have some prototype crypto code that I don't really use for anything, including this double-ratchet implementation:

https://github.com/rongarret/tweetnacl/blob/master/ratchet.l...

and some elliptic curve code:

http://www.flownet.com/ron/lisp/djbec.lisp

Of course. There are many. Any binary format. Any ASN.1 format. DEF and LEF for hardware descriptions. The output of mysqldump.

Here's another example:

https://github.com/rongarret/tweetnacl/blob/master/ratchet.l...

starting at line 82. (That's one that I designed.)

Hissp is a Python library that can compile a whole program into one Python expression.

If you want Python to be as customizable as Lissp, check out Hissp (and Hebigo).

Hissp is really cool for metaprogramming Python. There's also macropy, but it's harder to use.

I prefer https://github.com/gilch/hissp, where Hy has to use shims to pretend statements are expressions, Hissp just targets the expression subset in the first place. (though as you mentioned, hy has a lot of literature and support around it, where as you're going to have to find your own way around hissp)

No shortage of options, e.g. Dg, Mochi, Coconut, and Hebigo (based on Hissp[1]).

[1]: https://github.com/gilch/hissp

If you want Lisp metaprogramming plus Python ecosystem, check out Hissp

Hissp is really interesting. Read through the docs and you'll understand Python more deeply. It works well with Toolz and Pyrsistent.