diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index fed81e98a0ff2..d2130e366658d 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -10578,6 +10578,12 @@
     github = "jordanisaacs";
     githubId = 19742638;
   };
+  jorikvanveen = {
+    email = "vanveenjorik@protonmail.com";
+    github = "jorikvanveen";
+    githubId = 33939820;
+    name = "Jorik van Veen";
+  };
   jorise = {
     email = "info@jorisengbers.nl";
     github = "JorisE";
diff --git a/pkgs/by-name/po/posting/package.nix b/pkgs/by-name/po/posting/package.nix
new file mode 100644
index 0000000000000..4b72cb7875e4e
--- /dev/null
+++ b/pkgs/by-name/po/posting/package.nix
@@ -0,0 +1,81 @@
+{
+  lib,
+  fetchFromGitHub,
+  python3,
+}:
+let
+  py-pkgs = python.pkgs;
+  python = python3.override {
+    packageOverrides = self: super: {
+      # Current nixpkgs version is too outdated, causes crash on startup
+      pydantic-settings = (
+        super.pydantic-settings.overrideAttrs (oldAttrs: rec {
+          version = "2.6.0";
+          src = fetchFromGitHub {
+            owner = "pydantic";
+            repo = "pydantic-settings";
+            rev = "refs/tags/v${version}";
+            hash = "sha256-gJThzYJg6OIkfmfi/4MVINsrvmg+Z+0xMhdlCj7Fn+w=";
+          };
+          propagatedBuildInputs = [
+            super.pydantic
+            super.python-dotenv
+          ];
+        })
+      );
+
+      # Current nixpkgs version is too outdated, posting maintainer explicitly warns against relaxing this dependency
+      textual = (
+        super.textual.overrideAttrs (oldAttrs: rec {
+          version = "0.85.0";
+          src = fetchFromGitHub {
+            owner = "Textualize";
+            repo = "textual";
+            rev = "refs/tags/v${version}";
+            hash = "sha256-ROq/Pjq6XRgi9iqMlCzpLmgzJzLl21MI7148cOxHS3o=";
+          };
+        })
+      );
+    };
+  };
+in
+py-pkgs.buildPythonApplication rec {
+  pname = "posting";
+  version = "2.0.1";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "darrenburns";
+    repo = "posting";
+    rev = "refs/tags/${version}";
+    sha256 = "sha256-6KtC5VuG3x07VTenpyDAJr9KO4jdTCFk1u/pSoyYPsc=";
+  };
+
+  patches = [ ./relax-pyproject.patch ];
+
+  nativeBuildInputs = [ py-pkgs.hatchling ];
+
+  propagatedBuildInputs = [
+    py-pkgs.click
+    py-pkgs.xdg-base-dirs
+    py-pkgs.click-default-group
+    py-pkgs.pyperclip
+    py-pkgs.pyyaml
+    py-pkgs.python-dotenv
+    py-pkgs.watchfiles
+    py-pkgs.pydantic
+    py-pkgs.pydantic-settings
+    py-pkgs.httpx
+    py-pkgs.textual
+    py-pkgs.textual-autocomplete
+  ];
+
+  meta = {
+    description = "The modern API client that lives in your terminal.";
+    mainProgram = "posting";
+    homepage = "https://posting.sh/";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ jorikvanveen ];
+    platforms = lib.platforms.unix;
+  };
+}
diff --git a/pkgs/by-name/po/posting/relax-pyproject.patch b/pkgs/by-name/po/posting/relax-pyproject.patch
new file mode 100644
index 0000000000000..c6cab443e7bb1
--- /dev/null
+++ b/pkgs/by-name/po/posting/relax-pyproject.patch
@@ -0,0 +1,25 @@
+ndex cc30424..45badb6 100644
+--- a/pyproject.toml
++++ b/pyproject.toml
+@@ -9,17 +9,17 @@ dependencies = [
+     "click>=8.1.7,<9.0.0",
+     "xdg-base-dirs>=6.0.1,<7.0.0",
+     "click-default-group>=1.2.4,<2.0.0",
+-    "httpx[brotli]>=0.27.2,<1.0.0",
++    "httpx[brotli]>=0.27.0,<1.0.0",
+     "pyperclip>=1.9.0,<2.0.0",
+-    "pydantic>=2.9.2,<3.0.0",
++    "pydantic>=2.8.2,<3.0.0",
+     "pyyaml>=6.0.2,<7.0.0",
+-    "pydantic-settings>=2.4.0,<3.0.0",
++    "pydantic-settings>=2.3.4,<3.0.0",
+     "python-dotenv>=1.0.1,<2.0.0",
+     "textual[syntax]==0.85.0",
+     # pinned intentionally
+     "textual-autocomplete==3.0.0a12",
+     # pinned intentionally
+-    "watchfiles>=0.24.0",
++    "watchfiles>=0.22.0",
+ ]
+ readme = "README.md"
+ requires-python = ">= 3.11"
diff --git a/pkgs/development/python-modules/textual-autocomplete/default.nix b/pkgs/development/python-modules/textual-autocomplete/default.nix
new file mode 100644
index 0000000000000..9b9a9848ef9e0
--- /dev/null
+++ b/pkgs/development/python-modules/textual-autocomplete/default.nix
@@ -0,0 +1,33 @@
+{
+  lib,
+  python3,
+  fetchPypi,
+  poetry-core,
+  textual,
+  typing-extensions,
+}:
+python3.pkgs.buildPythonPackage rec {
+  pname = "textual_autocomplete";
+  version = "3.0.0a12";
+  pyproject = true;
+
+  # Alpha versions of this packages are only available on Pypi for some reason
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-HSyeTSTH9XWryMYSy2q//0cG9qqrm5OVBrldroRUkwk=";
+  };
+
+  nativeBuildInputs = [ poetry-core ];
+
+  dependencies = [
+    textual
+    typing-extensions
+  ];
+
+  meta = {
+    description = "Python library that provides autocomplete capabilities to textual";
+    homepage = "https://pypi.org/project/textual-autocomplete";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ jorikvanveen ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 8e9a1128b354c..2957586b04128 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -15544,6 +15544,8 @@ self: super: with self; {
 
   textual = callPackage ../development/python-modules/textual { };
 
+  textual-autocomplete = callPackage ../development/python-modules/textual-autocomplete { };
+
   textual-dev = callPackage ../development/python-modules/textual-dev { };
 
   textual-fastdatatable = callPackage ../development/python-modules/textual-fastdatatable { };