I haven't shown the Blinkencard doing its thing, so here's a console session over WiFi:

The initial '.' prompt is the Turnkey monitor - a CLI for peeking and poking at memory on Altair systems that don't have blinkenlights and switches. Here I'm running the BASIC ROM at address 0 (J000000) and entering a simple BASIC program.

The 'Reloading config' line comes from my telnet server which catches [CTRL-A] + R causing the ESP32 to reload the FPGA image and reset the emulation.