How to add a smart alignment to my lyrics?

[Eduardo Vieira]

Hello users!
I want to follow this style of aligning lyrics to the notes whenever a lyric
syllable starts a new verse:

\once \override LyricText #'self-alignment-X = #-1
\once \override LyricText #'X-offset = #-1

However I wonder if, by using Scheme, one could apply this setting *whenever* a
new system is created, so that every first lyric syllable can be left aligned
in the beginning of a system -- a style used by some song publishers.
Well, I don't know Scheme and won't be able to study much maybe until next year.
So, if someone feels challenged to do this and share the code, I'd be much
beholden to him.

Regards,

Eduardo Vieira

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