Upi Tamminen desaster

Setting up Proxy ARP with Raspberry Pi OS for use with SIMH/PiDP-11

(2024 edition)

Rationale

First of all, I like to use TAP interfaces for networking, since they are full featured interfaces and can be used as non-root. The absolutely best way to configure networking for SIMH would be a standard network bridge between WLAN0 and a TAP interface, and this is how I've done it on my normal SIMH setups. However, bridging is not possible with Raspberry Pi's WLAN interface.

Other options would be the builtin NAT functionality in SIMH, or a normal NAT setup between wlan0 and a tap interface (which I initially settled on).

Touchpad scroll too fast in Wayland?

You may try this: https://wayland.freedesktop.org/libinput/doc/latest/absolute-coordinate-ranges.html#absolute-coordinate-ranges-fix

But once you find nothing works, try this:

https://gitlab.com/warningnonpotablewater/libinput-config

On my XPS 13 9370, /etc/libinput.conf:

do the following in console, not X11

Prepare

# evtest
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event4:      AT Translated Set 2 keyboard

CDE/NetBSD 9.2 Installation Notes

I was able to compile and install CDE on NetBSD 9.2 using the latest git checkout (2021-08-04, g93e280b0). Here are my notes for it.

Fresh NetBSD 9.2, full installation with X11.

Prepare git

pkgin install mozilla-rootcerts

Original: https://gist.github.com/svofski/ce9bfc37d865b8ef38c43d52e0a8e82a

RSX-11M

List devices

DEV

	#
	# Builds all .asm files in src/ into .com files in build/
	#
	# For each built .com file in build/, a floppy image is generated in build/
	# containing the program, as well as an autoexec.bat to run the program and
	# shut down the computer on exit
	#
	# Requires a bootable DOS floppy image as a base (BASEFLOPPY)
	#
	# To have the autoexec.bat run the program under debug, use:

	;
	; Read hex values from input and write them to a file as bytes
	;
	; Intended to help with bootstrapping vintage computers, when the only access
	; is via keyboard or serial console.
	;
	; Goal is to remain small as possible, so the program could be transferred via
	; DEBUG.COM by hand.
	;
	; To compile:

	In gnome, urgency hint will cause the window to pop-up in front and steal focus, which is super annoying.

	On my busy tmux sessions with all kinds of software, urgency hints are triggering from seemingly random stuff.

	This patch just completely disables the urgency hints in alacritty.

	diff --git a/alacritty/src/event.rs b/alacritty/src/event.rs
	index 37d28bb9..babeb30f 100644
	--- a/alacritty/src/event.rs
	+++ b/alacritty/src/event.rs

	My personal customizations to the Keychron Q3 VIAL firmware.

	* Add some custom backlight to certain keys if "mac" layer is enabled. This is
	done because I use the "mac" layer to remap some keys to F-keys for quick
	access, so this modification lights them up for clarity

	* new custom keycode KC_BRCYCLE will cycle through three different backlight
	brightnesses. I map this to Fn-Space, so it behaves a bit like the backlight
	settings on my Lenovo laptop

	# Copyright (c) 1999-2001 Upi Tamminen <[email protected]>
	# See the COPYRIGHT file for more information

	package smiley

	alias h.smiley {
	while (1) {
	@ :smiley = randread(~/.hienoa/smileys)
	if (strlen($h.last_smiley) && smiley == h.last_smiley) {
	continue