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ScribeBot
Discontinued A highly scriptable automation system full of cool features. Automate everything with a little bit of Lua.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
You could check out AutoHotkey (assuming you're using Windows), I've never used it so not sure if an exe can be produced to at least partially fulfill your wish of not having to install software on the computer, you'll have to research that. Note that this software itself is available in a 'portable' version though.
If you want to use Lua, ScribeBot is a good alternative.
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.