An agenda application inspired by Agenda programs on Psion PDAs, written in Python/GTK. Targeting Planet Computers' Gemini PDA and Cosmo Communicator (running Linux) in particular, but should work on similar devices (after providing a user CSS file to set font sizes etc.).

A compiled-OPL interpreter for iOS written in Lua

Recreation of CTRAN.EXE, the Psion OO C preprocessor from the SIBO C SDK.

Unix scripts for large-print handouts etc

MF dialling for the Psion MC400 - written in 1995

PSION Organiser II - Data Pack Case (1)

PSION Organiser Data Pack Case (2)

Service for Raspberry Pi to update the pimoroni inky pHAT e-ink display with Psion connectivity statuses

Stock / Patched / upgraded ROM files for old Psion devices

Psion MC400 ROM image & software repository plus some hardware (ROM chips & keyboard) details

Things for Psion PDAs, from the Organiser to the netBook, including EPOC, SIBO, and Organiser abandonware, thing files for replacement parts, and FOSS Psion software.

Linux Userspace daemon, and Linux (& Android) kernel module for the PSION keyboard on Planet Computers devices.

Register-based VM runtime for the PSION OPL ecosystem.

A New Psion EPOC16 Word Processor

Tool to manipulate FEFS volumes (Psion Solid State Disk images). Currently only extracts files from FEFS images. (Formerly siboimg.)

Repository containing my C++ EPOC32 projects

SIBO/EPOC Compiled OPL interpreter written in Python

Setting the system clock in Psion SIBO computers via an attached GPS

An exploratory tool developed for investigation into Psion's 16 bit SIBO architecture and EPOC16 operating system. Designed to work on the Psion Series 3a/c/mx, Siena, Workabout 1, Workabout mx, Acorn Pocket Book II and Xemplar Pocket Book III.