Not quite on-topic but that esp8266 is a ridiculously use- and powerful MC. Some people build entire computers with it, VGA output via GPIO and everything. I even saw a youtube video of one emulating a x86, running Win 3.1.
Truthfully having internet on a machine from 91 is more of a novelty than anything, it makes transfering files a bit easier and there are some modern programs like wallops that take advantage of it.
I have a small ARM system that offers FTP- and additional other services (NTP, telnet etc.) for my old computers, it's mostly just useful for that because pretty much all these old systems have some sort of FTP client if they have networking. It also has serial connections via usb to RS232 for the computers that don't have networking. Neat little use for a small ARM.
I've seriously considered putting in a modern third party FPU expansion card, but eh, there doesn't seem to be a ton of value in adding one to this particular computer.
The only program I'm aware of that actually uses the FPU in my system is a program for generating fractals. It's not too useful, I mostly just didn't want to overclock the original CPU and replaced it with one that had the right rating. At that time you could still get full 040s with FPU for like, twenty bucks. (the chipset isn't overclocked, it actually supports these speeds in other 68k Macs of that generation) I'm not sure if the Amiga crazies gobbled up the 040 like they did to the 060s, but I think they are mostly focused on FPGAs now. I also ran MacOS on my 060-expanded Amiga with graphics card and emulator, it's actually considerably quicker than the Performa, but it's kind of a weird setup and there are some pitfalls, like MacOS stuff not being fully compatible to the 060 - you even need a specific patch so that it doesn't outright just lock up if a 060 is in use, Apple was pushing PowerPC and apparently really didn't want the 060 to be used in Macs. (for the record, the Performa is much more fun than such a crazily expanded Amiga - an Amiga expanded like this is just heaps of patches and hacks on the original OS which doesn't accommodate all this stuff at all, and barely any software to actually take advantage of any of it. Compare it to a heavily modded Bethesda game that crashes every five minutes, just in Computer form. If any of you are salivating over such an "ultra-rare" Amiga - don't. You're not missing much.)
I also desoldered the CPU socket and soldered the CPU directly onto the mainboard, to be able to fit a better heatsink on it and also lose some heat through the grounding plane. A 040 at that speeds isn't stable in all situations without some cooling. All the SMD caps had leaked (as had most of the power supply caps) so I needed to fix it up a little anyways.