J’ai mis une chanson a la fin de chaque chapitre.

Pour le chap 2, c’est Oh my love

[verse, John Lennon and Yoko One, Oh my love]
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Oh my love for the first time in my life
My *system* is *quite simple*
Oh my lover for the first time in my life
My *system* can adapt

I see the *code*, oh I see the *data*
Everything is clear in my heart
I see the *code*, oh I see the *data*
Everything is clear in my *system*

Oh my love for the first time in my life
My *entities* are *quite simple*
Oh my lover for the first time in my life
My *modules* can adapt

I feel the *arguments*, oh I feel the dreams
Everything is *stateless* in my *code*
I feel life, oh I feel love
Everything is clear in my *system*

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Chap 3. Lionel Richie

[verse, Lionel Richie, Hello]
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I've been *confused* with *classes* inside my code
And in my dreams I've *touched* your *fields* a thousand times
I sometimes see you pass around my *code*

*Data*, is it you I'm looking for?
I can see it in your *shape*, I can see it in your *path*
You're all I've ever wanted and my *mind* is open wide
'Cause you are just what you *are*, and I know just what to do
And I want to tell you so much, I *need* you

I long to see the *name* of your *fields*
And tell you time and time again how much I care
Sometimes I feel my *stack* will overflow

*Data*, I've just got to let you know
'Cause I wonder where you are and I wonder what to do
Are you somewhere feeling lonely or is some *language* *using* you?
Tell me how to *make the leap*, for I haven't got a clue
But let me start by saying, I *need* you

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Tres bonne idée