Up until recently there used to be these special batteries you could put in your fire/smoke/CO alarm that would contact you on your smartphone if the alarms went off while you were away.

They don't make them anymore, and if you want anything equivalent, it seems like you have to buy into an entire "smart home control system" or whatever they're called, and I don't need or want that.

It doesn't have to be a battery, but is there some way I can set up my alarms to contact me without surrendering all my privacy? The alarms I have now also aren't hard-wired into the house, which could present a problem, but that's why the Roost batteries were so nice!

Asking because USPS's frequently doesn't work.

SearXNG does, I think...any others? Looking around for other engines that aren't US-based, though I guess DDG is still considered acceptable for LibreWolf's default engine. Bangs are incredibly useful!

I was able to change the new tab favicon on LibreWolf with CSS:

/newtab favicon/ .tab-icon-image[src="chrome://branding/content/icon32.png"] { content: url("librewolf-NO8X71.png") !important; }

But I'd also like to be able to change the logo that appears on the "about:logo" page (looks like lemmy.world's CSS page is locked for now, so I'm asking here). Anyone know how to do this?

I kiped the logo from LibreWolf's reddit page, it's by u/NO8X71; tell me it's not the coolest thing you've ever seen! Wish I'd done it.

Signal has a "Note to Self" option which basically lets you send texts to yourself for reminders, etc. Is there a way to do this with any of the various Matrix clients, and if so how?

cross-posted from: https://lemmy.ml/post/27016418

I have some low quality scans of book pages, saved as a PDF, that I would like to enhance. Since they're text only, and the text is kind of faint, I think that using the erode filter on each page would probably work pretty well (it has in the past). The problem is, it would be nice to be able to use the erode filter on all the pages at once and not have to do each one individually.

When you open a single PDF page in GIMP, AFAICT, it imports it as an image file rather than a PDF, but I don't know what type of image. I installed BIMP to see if I could do a batch erode that way, but it wasn't able to do it. Is GIMP the way to go here, or would something like ImageMagick (which I know very little about) be better for this?

I have some low quality scans of book pages, saved as a PDF, that I would like to enhance. Since they're text only, and the text is kind of faint, I think that using the erode filter on each page would probably work pretty well (it has in the past). The problem is, it would be nice to be able to use the erode filter on all the pages at once and not have to do each one individually.

When you open a single PDF page in GIMP, AFAICT, it imports it as an image file rather than a PDF, but I don't know what type of image. I installed BIMP to see if I could do a batch erode that way, but it wasn't able to do it. Is GIMP the way to go here, or would something like ImageMagick (which I know very little about) be better for this?