From a95d2aaba40bab135761a5bebcc8d9004fb5304a Mon Sep 17 00:00:00 2001
From: Crony Akatsuki <crony@cronyakatsuki.xyz>
Date: Sun, 18 Jan 2026 16:54:16 +0100
Subject: [PATCH] feat: update opencode settings to use model version with
 bigger context.

---
 modules/linux/home-manager/shell-additions.nix | 12 +++++++++---
 modules/servers/general/fail2ban.nix           | 16 ++++++++++++++++
 2 files changed, 25 insertions(+), 3 deletions(-)
 create mode 100644 modules/servers/general/fail2ban.nix

diff --git a/modules/linux/home-manager/shell-additions.nix b/modules/linux/home-manager/shell-additions.nix
index c494ac0..e8c852a 100644
--- a/modules/linux/home-manager/shell-additions.nix
+++ b/modules/linux/home-manager/shell-additions.nix
@@ -28,7 +28,7 @@
     programs.opencode = {
       enable = true;
       settings = {
-        model = "ollama/gpt-oss:20b";
+        model = "ollama/gpt-oss-20b-high-32k";
         provider = {
           ollama = {
             npm = "@ai-sdk/openai-compatible";
@@ -37,10 +37,16 @@
               baseURL = "http://127.0.0.1:11434/v1";
             };
             models = {
-              "gpt-oss:20b" = {
-                name = "gpt-oss:20b";
+              "gpt-oss-20b-high-32k" = {
+                name = "gpt oss";
+                id = "gpt-oss-20b-32k";
                 reasoning = true;
                 tools = true;
+                options = {
+                  extraBody = {
+                    think = "high";
+                  };
+                };
               };
             };
           };
diff --git a/modules/servers/general/fail2ban.nix b/modules/servers/general/fail2ban.nix
new file mode 100644
index 0000000..97dc9a5
--- /dev/null
+++ b/modules/servers/general/fail2ban.nix
@@ -0,0 +1,16 @@
+{...}: {
+  services.fail2ban = {
+    enable = true;
+    maxretry = 5;
+    ignoreIP = [
+      "65.21.241.194"
+    ];
+    bantime = "24h"; # Ban IPs for one day on the first ban
+    bantime-increment = {
+      enable = true; # Enable increment of bantime after each violation
+      multipliers = "1 2 4 8 16 32 64";
+      maxtime = "168h"; # Do not ban for more than 1 week
+      overalljails = true; # Calculate the bantime based on all the violations
+    };
+  };
+}