Choose a layer to create a buffer around:

Write the distance you want for the buffer (in meter):

Choose a name for the new buffer:

Do you want to dissolve the buffers?

Make buffer

Which layer do you want to remove areas from:

Which layer do you want to remove from the first one:

Choose a name for the new layer:

Make difference

Choose a layer to dissolve:

Choose a name for the new dissolved layer:

Dissolve

Choose a layer to extract features from:

Which attribute will you extract to a new layer:

Which value will you sort out:

Choose a name for the new layer:

Extract

Choose the first layer to intersect:

Choose the second layer:

Choose a name for the intersection:

Intersect

Choose the first layer to union:

Choose the second layer:

Choose a name for the union:

Make union