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diff --git a/gemfeed/2021-08-01-on-being-pedantic-about-open-source.md b/gemfeed/2021-08-01-on-being-pedantic-about-open-source.md
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--- a/gemfeed/2021-08-01-on-being-pedantic-about-open-source.md
+++ b/gemfeed/2021-08-01-on-being-pedantic-about-open-source.md
@@ -1,6 +1,6 @@
 # On being Pedantic about Open-Source
 
-> Published by Paul at 2021-08-01 10:37:58 GMT
+> Published by Paul at 2021-08-01, last updated at 2023-01-23
 
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@@ -64,6 +64,10 @@ I only use free and open-source operating systems on my personal Laptops, Deskto
 
 ## What about mobile?
 
+> Update 2023-01-21: Check out my newer post about GrapheneOS, which solves some of my dilemmas
+
+[Why GrapheneOS Rox](./2023-01-23-why-grapheneos-rox.md)  
+
 I struggle to go 100% open-source on my Smartphone. I use a Samsung phone with the stock Android as provided by Samsung. I love the device as it is large enough to use as a portable reading and note-taking device, and it can also take decent pictures. As a cloud backup solution, I have my own NextCloud server (open-source). Android is mainly open-source software, but many closed parts are still included. I replaced most of the standard apps with free and open-source variants from the F-Droid store though.
 
 I could get a LineageOS based phone to get rid of the proprietary Android parts (I tried that out a couple of times in the past). But then a couple of convenient apps, such as Google Maps or Banking or Skype or the E-Ticket apps of various Airlines, various review apps when searching for restaurants, Audible (I think Audible offers an excellent service), etc., won't work anymore. The proprietary Google Maps is still the best maps app, even though there are open alternatives available. It's not that I couldn't live without these apps, but they make life a lot more convenient.