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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.
Nowadays most programming languages that want to use GObject library code (like Gtl+) use GObject Introspection (GI) to automatically generate foreign language bindings that call into the various Gtk+ native APIs written in C. Guile GI does exactly this, so you could copy the source code for Guile GI and maybe just port it over to Chicken Scheme (as long as you don't mind using the GNU General Public v3 license to release your code, because that is what Guile GI uses).
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