Retro68 VS cryanc

If you can live with cross-compiling from a modern PC (or Mac) you can use https://github.com/autc04/Retro68 which uses a recent version of GCC.

Alternatively, you could install Executor 2000 (sort of a Wine-like clean-room reimplementation of Macintosh System 6 for running on other OSes) and get into classic MacOS programming using the GCC-based Retro68 C++-17 toolchain.

Strongly recommend checking out Retro68 and cross compiling from a newer machine: https://github.com/autc04/Retro68

There are some really good Retro68 code examples out there as well. I started compiling a list here, including a couple of my own: https://henlin.net/2021/12/21/Cool-Retro68-projects/

As a few other folks have said, the inside Macintosh books are extremely valuable references for Mac-specific code. I keep pdfs of them open the whole time I’m working on my Macintosh projects.

if you want to go period-appropriate, you can run Macintosh Programmer's Workshop or CodeWarrior natively

I use retro68 on linux, which is a modern GCC toolchain, so it's just like developing any other C/C++ (well, without some nice debugging tools, and with the added complexity of the mac OS resource stuff)

https://github.com/autc04/Retro68/

personally, I think retro68 (port of modern GCC for vintage macs) is way nicer to use than any period-correct compilers or IDEs.

According to people at CryptoAncienne (https://github.com/classilla/cryanc), a 25MHz 68030 needs about 22 seconds of maths to handshake a modern TLS server. During that time, most servers close connection.

So on an 1MHz 6502, I think it'd be minutes just for handshaking.

CryAnc - proxy you can run on the same (old) machine. Pairs nicely with Classilla

Take a look at crypto ancienne, a modern TLS library for less modern compilers.

It's the encryption. For Crypto Ancienne, it may take 20 or more seconds for a cacheless 25MHz '030 to do a local TLS 1.2 transaction, and that's with skipping a whole bunch of steps. Pretty much anything under 40MHz will have timeouts because most servers won't wait.

https://github.com/classilla/cryanc