# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
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# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
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# twt range = 1 1
# self = https://watcher.sour.is/conv/3fapweq
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Psion OPL: when we owned our devices
We talked about Psion last week, and we’re talking about Psion again this week. This time, Kian Ryan highlights a very important capability of Psion’s devices, a capability that’s entirely absent from today’s mobile devices: a built-in IDE and dedicated programming language so you can write code and build applications, including ones with a graphical user interface, right on the device. All Psion devices could run OPL, either preinstalled on the device or via ... ⌘ Read more