  We operate the six German stations of the LOw Frequency ARray as standalone
telescopes to observe more than 100 pulsars every week. To date, we have
collected almost four years of high-quality data at an unprecedented weekly
cadence. This allows us to perform a wide variety of analyses aimed at
characterising the magnetoionic plasma crossed by pulsar radiation. In
particular, our studies are focused on electron density variations in the
interstellar and interplanetary media, the Galactic and interplanetary magnetic
field, scintillation, and extreme scattering events. Here we report the first
results from our Solar wind monitoring campaign.
