diff --git a/os/linux/nixos/docs/books.txt b/os/linux/nixos/docs/books.txt
index c603ac2d6..64532b761 100644
--- a/os/linux/nixos/docs/books.txt
+++ b/os/linux/nixos/docs/books.txt
@@ -1,3 +1,17 @@
2023
https://leanpub.com/nixos-in-production
- https://www.haskellforall.com/2023/01/terraform-nixos-ng-modern-terraform.html?m=1
+ https://github.com/Gabriella439/nixos-in-production/tree/develop/manuscript
+ https://github.com/Gabriella439/nixos-in-production/blob/develop/manuscript/Book.txt
+ https://github.com/Gabriella439/nixos-in-production/blob/develop/manuscript/Setup.md
+ https://releases.nixos.org/nix/nix-${VERSION}/install
+ https://github.com/Gabriella439/nixos-in-production/blob/develop/manuscript/ContinuousIntegrationDeployment.md
+ garnix
+ https://garnix.io/
+ https://github.com/apps/garnix-ci
+ https://www.haskellforall.com/2023/01/terraform-nixos-ng-modern-terraform.html
+ https://nix.dev/tutorials/nixos/deploying-nixos-using-terraform
+ https://www.haskellforall.com/2023/01/announcing-nixos-rebuild-new-deployment.html
+ https://discourse.nixos.org/t/morph-nix-based-deployment-tool/1276/9
+ https://github.com/NixOS/nixpkgs/issues/108984
+ https://github.com/YorikSar/nixos-vm-on-macos
+ https://github.com/Gabriella439/nixos-in-production
diff --git a/os/linux/nixos/flakes/docs/articles.txt b/os/linux/nixos/flakes/docs/articles.txt
index 42ef4b125..7c0dfa3ab 100644
--- a/os/linux/nixos/flakes/docs/articles.txt
+++ b/os/linux/nixos/flakes/docs/articles.txt
@@ -1,3 +1,5 @@
+????
+https://garnix.io/blog/converting-to-flakes
2022
https://xeiaso.net/blog/series/nix-flakes
https://xeiaso.net/blog/nix-flakes-4-wsl-2022-05-01
diff --git a/pl/java/libfws/spring/security/oauth/oauth2/server/keycloak.txt b/pl/java/libfws/spring/security/oauth/oauth2/server/keycloak.txt
index dcac9a9c3..05238cb28 100644
--- a/pl/java/libfws/spring/security/oauth/oauth2/server/keycloak.txt
+++ b/pl/java/libfws/spring/security/oauth/oauth2/server/keycloak.txt
@@ -43,7 +43,7 @@ https://www.keycloak.org/docs/latest/securing_apps/index.html#_spring_boot_adapt
books
2023
-Thorgersen - Keycloak
+ThorgersenSilva - Keycloak - Identity and Access Management for Modern Applications 2nd ed
2FCEDB79A750149203A1E5CEA5118AA2
2023
diff --git a/rss/feedly.opml b/rss/feedly.opml
index bc815447a..37a8f3365 100644
--- a/rss/feedly.opml
+++ b/rss/feedly.opml
@@ -5,54 +5,89 @@
Igor subscriptions in feedly Cloud
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diff --git a/security/sops/sops.txt b/security/sops/sops.txt
new file mode 100644
index 000000000..d7f2a9fcc
--- /dev/null
+++ b/security/sops/sops.txt
@@ -0,0 +1,2 @@
+https://github.com/getsops/sops
+ https://pkg.go.dev/github.com/getsops/sops/v3/decrypt