Red Flag for Privacy on Nostr.
Blocking Alby at the network level (ADGuard Pihole) still lets you zap


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 Aren't they shutting down?  Is this going to break your service? 

 What's the packet data?
Does the zap fail if blocked ?
🤔 

 I blocked it with AdGuard and I can still zap 

 So most likely some tracking data 

 I am fairly certain you are routing your invoices along this path: Recipient-> Nostr relay-> getalby.com-> LNBits web server-> you LN node.  I don't think LN bits can natively talk to a Nostr relay unless you paste that Gian LNURL into something like Amethyst. (most Nostr cloents have depricated LNURL for Lightning addresses). A lightning address needs a web server and a domain to host your invoice received data. 

if you don't trust any company you must host your own domain. Have some sort of web server on 24/7. use a program like Zaplocker to catch invoices and forward them to your Lightning node. and connect that to your LND instance. 
NWC and LND hub seem to be the most open and free software that does this but I understand the apprehension. 

 so many spelling errors ugh. 
your* LN node
Giant* LNURL
Nostr Clients* 

 the extension talks directly to the lnbits - if that is used in the extension. that does not go through any of the Alby servers.  

 You likely use the Alby fiat rates. Can you go to settings and disable fiat rates or use a different rate provider. 
In the rates we specifically use the Alby one to not make users request other sources without knowing it. 

and thanks for investigating this, this for sure is helpful for us to improve this and I am sure we can get better there. 
User privacy is very important to us, though we our main focus is at this point simplicity.  

 Does Alby Hub work on Fedora Linux