The map of merretekerjek.hu is for cyclists in Hungary. It visualises the frequent used ways brighter, so it is very easy to choose the best one.
The sample config: https://paste.ubuntu.com/11812758/
Could you insert it into Locus?
There is a heatmap you can swich on on the web-gui:
(I have no info how to enable this layer to use it in Locus)
I contacted the owner of the site in mail, (S)he might help in the integration. (API documentation?)
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