diff --git a/.gitignore b/.gitignore
index 78f436a..8329ee3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,6 @@ opencode.json
 
 # Pi project-local packages (if using pi install -l)
 .pi/npm/
+
+# Pi Lens local cache/runtime artifacts
+.pi-lens/
diff --git a/flake.lock b/flake.lock
index 238009a..ac47896 100644
--- a/flake.lock
+++ b/flake.lock
@@ -26,14 +26,17 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1775879794,
-        "narHash": "sha256-4BN5pGaEXREaDi2uZ8hU8nROUZr4ps9TwkN3eb/wMIo=",
-        "path": "/home/m3tam3re/p/AI/AGENTS",
-        "type": "path"
+        "lastModified": 1776092721,
+        "narHash": "sha256-avV4Snqp0K57I9s8D61+GHlg9DYZFSIvjaS4d4RYpG8=",
+        "ref": "refs/heads/master",
+        "rev": "0ad41acb03eee0e22cba611b2171a3d3ee30cb10",
+        "revCount": 72,
+        "type": "git",
+        "url": "https://code.m3ta.dev/m3tam3re/AGENTS"
       },
       "original": {
-        "path": "/home/m3tam3re/p/AI/AGENTS",
-        "type": "path"
+        "type": "git",
+        "url": "https://code.m3ta.dev/m3tam3re/AGENTS"
       }
     },
     "base16-schemes": {
@@ -429,14 +432,17 @@
         "openspec": "openspec"
       },
       "locked": {
-        "lastModified": 1775881067,
-        "narHash": "sha256-PutNWyXD08PmouVLZBksCLcywHowUE/YrVTNs5Rr6Ls=",
-        "path": "/home/m3tam3re/p/NIX/nixpkgs",
-        "type": "path"
+        "lastModified": 1776099116,
+        "narHash": "sha256-2Mg1ZVXJSLbNFvpzk2pmkc768pRMXLSJJAOqLdQ65Qg=",
+        "ref": "refs/heads/master",
+        "rev": "613e9223e4ffb6cca721d5f6dc5ff0d95ab8993c",
+        "revCount": 225,
+        "type": "git",
+        "url": "https://code.m3ta.dev/m3tam3re/nixpkgs"
       },
       "original": {
-        "path": "/home/m3tam3re/p/NIX/nixpkgs",
-        "type": "path"
+        "type": "git",
+        "url": "https://code.m3ta.dev/m3tam3re/nixpkgs"
       }
     },
     "nix-colors": {
@@ -776,16 +782,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1775461158,
-        "narHash": "sha256-FiQzBj3C0sAnKU+WMktliqt0zM3YQDrgQbner1LOTi8=",
+        "lastModified": 1775782812,
+        "narHash": "sha256-m+Ue7FWiTjKMAn1QefAwOMfOb2Vybk0mJPV9zcbkOmE=",
         "owner": "anomalyco",
         "repo": "opencode",
-        "rev": "517e6c9aa4c61dbc125e7654fc596f1d529f20d9",
+        "rev": "877be7e8e04142cd8fbebcb5e6c4b9617bf28cce",
         "type": "github"
       },
       "original": {
         "owner": "anomalyco",
-        "ref": "v1.3.17",
+        "ref": "v1.4.3",
         "repo": "opencode",
         "type": "github"
       }
diff --git a/home/features/coding/opencode.nix b/home/features/coding/opencode.nix
index 5e4ab9f..9caa29c 100644
--- a/home/features/coding/opencode.nix
+++ b/home/features/coding/opencode.nix
@@ -1,4 +1,8 @@
-{inputs, ...}: {
+{
+  inputs,
+  lib,
+  ...
+}: {
   coding.agents.opencode = {
     enable = true;
     agentsInput = inputs.agents;
@@ -17,72 +21,6 @@
   coding.opencode = {
     enable = true;
 
-    # AZ-Gruppe LiteLLM endpoint + available models
-    extraSettings = {
-      provider = {
-        litellm = {
-          npm = "@ai-sdk/openai-compatible";
-          name = "LiteLLM (AZ-Gruppe)";
-          options.baseURL = "https://llm.az-gruppe.com/v1";
-          models = {
-            "gpt-5.2" = {
-              name = "GPT-5.2";
-              limit = {
-                context = 400000;
-                output = 128000;
-              };
-            };
-            "gpt-5.3-codex" = {
-              name = "GPT-5.3 Codex";
-              limit = {
-                context = 400000;
-                output = 128000;
-              };
-            };
-            "claude-haiku-4-5" = {
-              name = "Claude Haiku 4.5";
-              options = {
-                thinking = {
-                  type = "enabled";
-                  budget_tokens = 16000;
-                };
-              };
-              limit = {
-                context = 200000;
-                output = 64000;
-              };
-            };
-            "claude-sonnet-4-6" = {
-              name = "Claude Sonnet 4.6";
-              options = {
-                thinking = {
-                  type = "enabled";
-                  budget_tokens = 16000;
-                };
-              };
-              limit = {
-                context = 200000;
-                output = 64000;
-              };
-            };
-            "claude-opus-4-6" = {
-              name = "Claude Opus 4.6";
-              options = {
-                thinking = {
-                  type = "enabled";
-                  budget_tokens = 16000;
-                };
-              };
-              limit = {
-                context = 200000;
-                output = 128000;
-              };
-            };
-          };
-        };
-      };
-    };
-
     ohMyOpencodeSettings = {
       agents = {
         sisyphus.model = "litellm/claude-opus-4-6";
@@ -107,4 +45,82 @@
       };
     };
   };
+
+  # Keep TUI settings in programs.opencode.tui to satisfy OpenCode v1.2.15+.
+  programs.opencode.tui.theme = "opencode";
+
+  # Override legacy default settings to avoid deprecated TUI keys in settings.
+  programs.opencode.settings = lib.mkForce {
+    plugin = ["oh-my-openagent"];
+    formatter = {
+      alejandra = {
+        command = ["alejandra" "-q" "-"];
+        extensions = [".nix"];
+      };
+    };
+
+    # AZ-Gruppe LiteLLM endpoint + available models
+    provider = {
+      litellm = {
+        npm = "@ai-sdk/openai-compatible";
+        name = "LiteLLM (AZ-Gruppe)";
+        options.baseURL = "https://llm.az-gruppe.com/v1";
+        models = {
+          "gpt-5.2" = {
+            name = "GPT-5.2";
+            limit = {
+              context = 400000;
+              output = 128000;
+            };
+          };
+          "gpt-5.3-codex" = {
+            name = "GPT-5.3 Codex";
+            limit = {
+              context = 400000;
+              output = 128000;
+            };
+          };
+          "claude-haiku-4-5" = {
+            name = "Claude Haiku 4.5";
+            options = {
+              thinking = {
+                type = "enabled";
+                budget_tokens = 16000;
+              };
+            };
+            limit = {
+              context = 200000;
+              output = 64000;
+            };
+          };
+          "claude-sonnet-4-6" = {
+            name = "Claude Sonnet 4.6";
+            options = {
+              thinking = {
+                type = "enabled";
+                budget_tokens = 16000;
+              };
+            };
+            limit = {
+              context = 200000;
+              output = 64000;
+            };
+          };
+          "claude-opus-4-6" = {
+            name = "Claude Opus 4.6";
+            options = {
+              thinking = {
+                type = "enabled";
+                budget_tokens = 16000;
+              };
+            };
+            limit = {
+              context = 200000;
+              output = 128000;
+            };
+          };
+        };
+      };
+    };
+  };
 }
diff --git a/home/m3tam3re/home-server.nix b/home/m3tam3re/home-server.nix
index d08932d..90762c1 100644
--- a/home/m3tam3re/home-server.nix
+++ b/home/m3tam3re/home-server.nix
@@ -19,7 +19,7 @@
   # You should not change this value, even if you update Home Manager. If you do
   # want to update the value, then make sure to first check the Home Manager
   # release notes.
-  home.stateVersion = "24.11"; # Please read the comment before changing.
+  home.stateVersion = "26.05"; # Updated to adopt HM 26.05 defaults.
 
   # The home.packages option allows you to install Nix packages into your
   # environment.
diff --git a/home/m3tam3re/home.nix b/home/m3tam3re/home.nix
index 780abe3..a3e7ccb 100644
--- a/home/m3tam3re/home.nix
+++ b/home/m3tam3re/home.nix
@@ -19,7 +19,7 @@
   # You should not change this value, even if you update Home Manager. If you do
   # want to update the value, then make sure to first check the Home Manager
   # release notes.
-  home.stateVersion = "24.11"; # Please read the comment before changing.
+  home.stateVersion = "26.05"; # Updated to adopt HM 26.05 defaults.
 
   # The home.packages option allows you to install Nix packages into your
   # environment.
diff --git a/hosts/m3-ares/default.nix b/hosts/m3-ares/default.nix
index 36a9237..695069b 100644
--- a/hosts/m3-ares/default.nix
+++ b/hosts/m3-ares/default.nix
@@ -44,7 +44,7 @@
 
   extraServices = {
     flatpak.enable = true;
-    ollama.enable = true;
+    ollama.enable = false;
     podman.enable = true;
     virtualisation.enable = true;
   };
diff --git a/overlays/default.nix b/overlays/default.nix
index 3d30474..00ced70 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -27,7 +27,7 @@
 
   temp-packages = final: _prev: {
     temp = import inputs.nixpkgs-9e9486b {
-      system = final.system;
+      system = final.stdenv.hostPlatform.system;
       config.allowUnfree = true;
     };
   };