diff --git a/hosts/NixOracle/configuration.nix b/hosts/NixOracle/configuration.nix
index 88905e7..be57e3e 100644
--- a/hosts/NixOracle/configuration.nix
+++ b/hosts/NixOracle/configuration.nix
@@ -69,6 +69,7 @@ in {
 
   systemd.tmpfiles.rules = [
     "d /home/${username}/notebooks 0750 ${username} users -"
+    "d /etc/nextcloud-secrets 0750 nextcloud nextcloud -"
   ];
 
   environment.etc."jupyter/jupyter_server_config.py".text = ''
@@ -95,6 +96,10 @@ in {
       forceSSL = true;
       root = "${site}";
     };
+    virtualHosts."nextcloud.tadix.dev" = {
+      enableACME = true;
+      forceSSL = true;
+    };
     virtualHosts."git.tadix.dev" = {
       enableACME = true;
       forceSSL = true;
@@ -107,6 +112,15 @@ in {
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         '';
       };
+      locations."/api/" = {
+        proxyPass = "http://127.0.0.1:3000";
+        extraConfig = ''
+          proxy_set_header Host $host;
+          proxy_set_header X-Real-IP $remote_addr;
+          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+          add_header 'Access-Control-Allow-Origin' 'https://tadix.dev' always;
+        '';
+      };
     };
     virtualHosts."biolab.tadix.dev" = {
       enableACME = true;
@@ -129,6 +143,63 @@ in {
     };
   };
 
+  services.nextcloud = {
+    enable = true;
+    package = pkgs.nextcloud32;
+    hostName = "nextcloud.tadix.dev";
+    https = true;
+    database.createLocally = true;
+    config = {
+      adminuser = "ltadeu6";
+      adminpassFile = "/etc/nextcloud-secrets/admin-password";
+      dbtype = "pgsql";
+    };
+    phpOptions."opcache.interned_strings_buffer" = "16";
+    settings = {
+      default_phone_region = "BR";
+      maintenance_window_start = 1;
+    };
+  };
+
+  systemd.services.nextcloud-minimize = {
+    description = "Configure Nextcloud for minimal file-storage use";
+    after = [ "nextcloud-setup.service" ];
+    requires = [ "nextcloud-setup.service" ];
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+      RemainAfterExit = true;
+      User = "nextcloud";
+      Group = "nextcloud";
+    };
+    unitConfig.X-Restart-Triggers = [
+      (builtins.toFile "nextcloud-minimize-trigger" ''
+        defaultapp=files
+        disabled=activity,calendar,contacts,dashboard,firstrunwizard,photos,weather_status,circles,recommendations,user_status,systemtags
+        theme=dark,#7aa2f7,plain
+        repair=mimetypes
+      '')
+    ];
+    script = ''
+      set -eu
+      occ=/run/current-system/sw/bin/nextcloud-occ
+
+      $occ config:system:set defaultapp --value=files
+
+      for app in activity calendar contacts dashboard firstrunwizard photos weather_status circles recommendations user_status systemtags; do
+        $occ app:disable "$app" 2>/dev/null || true
+      done
+
+      $occ config:app:set theming defaultColorScheme --value=dark
+      $occ config:app:set theming color --value="#7aa2f7"
+      $occ config:app:set theming background --value="plain"
+      $occ config:app:set theming name --value="Files"
+      $occ config:app:set theming slogan --value=""
+
+      $occ maintenance:repair --include-expensive
+    '';
+  };
+
   services.forgejo = {
     enable = true;
     database.type = "sqlite3";
@@ -141,6 +212,11 @@ in {
       };
       service.DISABLE_REGISTRATION = true;
       log.LEVEL = "Warn";
+      cors = {
+        ENABLED = true;
+        ALLOW_DOMAIN = "tadix.dev";
+        METHODS = "GET,HEAD,OPTIONS";
+      };
     };
   };
 
diff --git a/hosts/NixOracle/site/index.html b/hosts/NixOracle/site/index.html
index 3e3df24..06834a1 100644
--- a/hosts/NixOracle/site/index.html
+++ b/hosts/NixOracle/site/index.html
@@ -23,10 +23,20 @@
   <section>
     <h2>PROJECTS</h2>
     <p>
-      <a href="https://biolab.tadix.dev">BioLab</a>
-      <span class="dim"> — bioprocess modeling and parameter estimation tool</span>
-      <br>
-      <span class="dim"><a href="https://git.tadix.dev/ltadeu6/BioLab">source</a> · <a href="https://biolab.tadix.dev">live</a></span>
+      <a href="https://git.tadix.dev/ltadeu6/BioLab">BioLab</a>
+      <span class="dim"> — web tool for kinetic parameter estimation from experimental growth data.<br>
+      Fits seven microbial models simultaneously via PSO and ranks results by AIC.</span>
+      <br><span class="dim"><a href="https://biolab.tadix.dev">live</a></span>
+    </p>
+    <p>
+      <a href="https://git.tadix.dev/ltadeu6/matrix-android">matrix-android</a>
+      <span class="dim"> — minimal Android Matrix client with a terminal aesthetic.<br>
+      Text-only, E2EE via libolm, SSO login.</span>
+    </p>
+    <p>
+      <a href="https://git.tadix.dev/ltadeu6/Nixos-Config">nixos-config</a>
+      <span class="dim"> — NixOS and Home Manager config for desktop and Oracle VPS.<br>
+      Covers system services, secrets via agenix, Hyprland, and self-hosted infrastructure.</span>
     </p>
   </section>
 
@@ -42,6 +52,8 @@
     <a href="https://github.com/ltadeu6">github</a>
     <a href="https://git.tadix.dev">git</a>
     <a href="https://jupyter.tadix.dev">jupyter</a>
+    <a href="https://nextcloud.tadix.dev">nextcloud</a>
   </footer>
+
 </body>
 </html>