I think I'm officially insane, but

contabilità degli aghi: uno perso (come diamine ho fatto???), uno rotto (e di solito non rompo gli aghi da cucito *a mano*!)

(e non sto neanche usando i miei soliti fini fini del 12, sto usando un bel cicciotto 9)

@valhalla hai controllato nel pagliaio?

On the other hand, the morning was pretty productive and I took pictures of attaching the closure webbing, and assembling and attaching one lower strap.

Did I mention I was taking pictures, so I tried to do one of each to be able to take more pictures when the light was good, and then keep the second to do possibly in the evening or so? :D

A parte quello, la mattina è stata abbastanza produttiva e ho fatto foto dei passaggi in cui attaccavo la chiusura e assemblavo e attaccavo la cinghia dello spallaccio.

Ho detto che stavo scattando foto, quindi mi sono concentrata sul fare uno di ciascuna cosa per fare più foto finché c'era luce, in modo da poter fare il secondo alla sera o simili?

This is what it looked like at the end of this morning

now the other shoulder strap is also attached, and the second lower strap is half-attached, but I had to stop for dinner.

the back panel is almost done!

Questo è l'aspetto che aveva alla fine della mattinata

adesso anche l'altro spallaccio è attaccato, e la cinghia sotto è attaccata a metà, ma ho dovuto interrompermi per la cena.

il pannello verso la schiena è quasi finito!

@valhalla I have sewn things on with fishing line and a curved needle, but I doubt that has the look your going for! :-)
Mens work clothes.

@gemlog I don't think I've ever seen how that would look like, but for a backpack it may also be a reasonable look?

I guess it's pretty sturdy, right?

@valhalla Fishing line is sold in various 'tests' or breaking strength like 8lb test or 14lb test and so on.
It's normally blue, but heavier tests tend to yellow or brown where I live.
I hit upon using it, because I bought some work pants of very light nylon, but with 2 normal pockets and 6 flap pockets.
But I found out when they came that they had no fasteners! :-(
No problem. I had some rolls of self-adhesive velcro for some reason: problem solved.
Bzzzt! Wrong! The things I loaded in my pockets just pulled away the self-adhesive from the pants.
OK, fine! I added some cyanoacrylate glue (krazy/super glue)...
Nope! Grrr!
So that's when I hit upon using a curved needle and some fishing line. This worked!
Although it *is* hard to push the needle through the velcro. But it only takes a few stitches to hold.
Now, I did have a different couple of problems I thought to apply this to as well.
I had paid a local woman to sew some stretchy velcro onto my rabbit fur hat - it can blow down to nearly -40C here. And I also had a problem with jack-jacket buttons getting stuck in the mesh used to bind Christmass trees tightly for shipping. They got hooked up and popped off.
She, probably correctly, pointed out that I'd likely keep the buttons to the cloth with the fishing line, but rip away the cloth!
So, it depends on the application I guess.
Likewise, I wanted her to sew a button back above the front 'fly' zipper of my work pants. I blame my 78kg for popping it off. She refused an sewed it with thread.
It popped off.
I re-sewed it with fishing line and it's still good.
So.
I never thought I'd be sharing a sewing experience with Elena of Valhala! :-) Seamstress extraordinaire! :-)
https://www.youtube.com/watch?v=zf0vyGc9ZQQ
https://www.youtube.com/watch?v=N76CMSsaBnI
Maybe one of them would look OK on a backpack and satisfy your desire for aesthetically pleasing stitches.

@gemlog usually it's considered quite important to match the strength of the thread to the strength of the fabric, and if a precise match isn't possible to have thread that is *weaker* than the fabric, so that it won't tear it (resewing when thread breaks is always easier than having to mend / patch the fabric *and* resewing it)

of course if the fabric is some kind of abrasion resistant work-clothing synthetic, I see no reason not to use fishing line (other than possibly hand health issues for the seamstress)

In the long weekend I didn't have much time to sew, but one side seam is sewn and felled

it was a bit slower than I expected, but there is only four of them, and I've just started the second

And I've just realized that I should also finish attaching the closure to the front panel, or I won't be ready to do the last two vertical seams when I've finished this one.

Nel weekend lungo non ho avuto molto tempo per cucire, ma una cucitura del fianco è cucita e ribattuta(?).

È stato un po' più lento di quanto mi aspettassi, ma ce ne sono solo quattro, e ho iniziato la seconda.

E mi sono resa conto adesso che dovrei anche finire di attaccare la chiusura al pannello davanti, altrimenti una volta finita questa cucitura verticale non sono pronta per le altre due.

l'altra cucitura sul fianco è andata più veloce, è cucito (ma ancora non ribattuto)

edit: le concordanze sono difficili :D

three side seams out of four sewn and felled.

(and I've attached the closure to the front, and I'm not sure if I've done exactly the right thing, but I think it will work, even if it's not going to be the nicest thing ever)

tre cuciture sui fianchi cucite e ribattute.

(e ho attaccato la chiusura sul davanti, e non sono sicura di aver fatto esattamente la cosa giusta, ma credo che funzioni, anche se potrebbe non essere la cosa più bella del mondo)

@valhalla

Domanda tecnica da inesperto: cosa si intende per "cucitura ribattuta"?

Che magari è pure una cosa che faccio senza sapere che si chiama così.