How to represent an itinerary and relative speeds in QGIS 3.18?

The instructions to follow to incorporate and analyze a tour (track) inside QGIS 3.18:

1. Record the route with the application of your choice (ie. Komoot)
2. Don't forget to finish the tour recording
3. Export the route to an open format (GPX, KML…)
4. Import this "track" file into QGIS
5. Convert the series of “track_points” (o waypoints) a Shapefile
6. Take advantage of reprojecting to a projection of type UTM
7. Using the formulas offered by QGIS calculator:
   1. Calculate the time dT elapsed between T(id) y T(id+1)
   2. Calculate the distance dD traveled between Geom(id) and Geom(id+1)
   3. Infer the speed in km/h with the formula: dD/dT*3600/1000
8. Represent each vertex by a color gradation of velocities
9. Render the track with width 2px, black color and transparency 70%
10. Activate a street or satellite map in the background as a reference
11. Get the following map as a result. And There you go.
12. Any doubt, you can write us through contact

tags: QGIS 3.18, Komoot, Strava, Wikiloc, Tredic, Ride with GPS, Bike Computer, RunKeeper, Endomondo, Bikemap, Runtastic, Maps.me, OsmAnd, MyFitnessPal, Sygic, Be-on-Road, TomTom Go, Jeff, MagicEarth, Fitocracy, Runanalyze, Nike Training Club, MapFactor, QGIS Calculator, Advanced Calculator, QGIS Formula, Google Spreadsheets, Google Chart, Google Graph, speed, route, track, waypoint, GPX, KML, Route Points, getfeature(), getfeature_by_id(), distance(), geometry(), polynomial trend line