[weblacky]

It's already under your foot: https://nekofiles.irixnet.org/Drivers/tablet/

IIRC the first Webforce Indys ran 5.3. You should check out WebMagic, which was bundled.
If any form of WYSIWYG editor is not your thing, jot and emacs are going to give you the '90s experience.
I can't remember if nedit was on the first Freeware CD, but nedit, emacs, and Xemacs are all on Freeware 2.0, which I think will install on 5.3.
Xemacs FTW! IMHO 

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This reminds me...

Does anyone have the Wacom 4.5.1 (or 4.5.2) driver software?
Apparently that was a working version that I had installed under IRIX 6.2, but is no longer functioning (broken sym links or something, not sure)

I'm running version 3.2 to reasonable effect, but the control panel is troublesome and hasn't allowed me to convince it that my ARTPAD's pen has an eraser.

Thanks!