diff --git a/.changeset/dry-socks-flow.md b/.changeset/dry-socks-flow.md
new file mode 100644
index 00000000..2621ca7f
--- /dev/null
+++ b/.changeset/dry-socks-flow.md
@@ -0,0 +1,5 @@
+---
+"draupnir": patch
+---
+
+Make unit tests and lint commands work cross platform
diff --git a/.changeset/few-apples-tickle.md b/.changeset/few-apples-tickle.md
new file mode 100644
index 00000000..a2090b18
--- /dev/null
+++ b/.changeset/few-apples-tickle.md
@@ -0,0 +1,6 @@
+---
+"draupnir": minor
+---
+
+Migrate Describe Version / Branch to dedicated scripts for true cross platform
+development compatibility.
diff --git a/apps/draupnir/package.json b/apps/draupnir/package.json
index ce4a9b98..93db789f 100644
--- a/apps/draupnir/package.json
+++ b/apps/draupnir/package.json
@@ -10,10 +10,10 @@
   "scripts": {
     "build": "tsc --project test/tsconfig.json && npm run build:assets",
     "build:assets": "npm run describe-version && npm run describe-branch",
-    "describe-version": "(git describe > version.txt.tmp && mv version.txt.tmp version.txt) || true && rm -f version.txt.tmp",
-    "describe-branch": "(git rev-parse --abbrev-ref HEAD > branch.txt.tmp && mv branch.txt.tmp branch.txt) || true && rm -f branch.txt.tmp",
+    "describe-version": "node scripts/write-build-info.cjs version",
+    "describe-branch": "node scripts/write-build-info.cjs branch",
     "harness-registration": "node dist/appservice/cli.js -r -u \"http://host.docker.internal:9000\" --enable-source-maps",
-    "test:unit": "mocha --require './test/tsnode.cjs' --forbid-only 'test/unit/**/*.{ts,tsx}'",
+    "test:unit": "mocha --require \"./test/tsnode.cjs\" --forbid-only \"test/unit/**/*.{ts,tsx}\"",
     "test:unit:single": "mocha --require test/tsnode.cjs",
     "test:integration": "NODE_ENV=harness mocha --require test/tsnode.cjs --async-stack-traces --forbid-only --require test/integration/fixtures.ts --timeout 300000 --project ./tsconfig.json \"test/integration/**/*Test.ts\" -- --draupnir-config ../../config/harness.yaml",
     "test:integration:single": "NODE_ENV=harness mocha --require test/tsnode.cjs --require test/integration/fixtures.ts --timeout 300000 --project ./tsconfig.json -- --draupnir-config ../../config/harness.yaml",
diff --git a/apps/draupnir/scripts/write-build-info.cjs b/apps/draupnir/scripts/write-build-info.cjs
new file mode 100644
index 00000000..a9f37184
--- /dev/null
+++ b/apps/draupnir/scripts/write-build-info.cjs
@@ -0,0 +1,39 @@
+// SPDX-FileCopyrightText: 2026 Catalan Lover <catalanlover@protonmail.com>
+//
+// SPDX-License-Identifier: 0BSD
+
+// Cross-platform replacement for the old mv/rm shell one-liners (Windows cmd.exe has neither).
+const { execSync } = require("node:child_process");
+const fs = require("node:fs");
+const path = require("node:path");
+
+const targets = {
+  version: {
+    command: "git describe",
+    file: path.join(__dirname, "..", "version.txt"),
+  },
+  branch: {
+    command: "git rev-parse --abbrev-ref HEAD",
+    file: path.join(__dirname, "..", "branch.txt"),
+  },
+};
+
+function writeBuildInfo(target) {
+  const { command, file } = targets[target];
+  try {
+    const output = execSync(command, { encoding: "utf-8" }).trim();
+    fs.writeFileSync(file, output + "\n");
+  } catch {
+    // git may be unavailable, this may not be a repo, or there may be no tags/HEAD.
+    // config.ts already falls back to package.json's version / a default message.
+  }
+}
+
+const target = process.argv[2];
+if (!targets[target]) {
+  console.error(
+    `Usage: node write-build-info.cjs <${Object.keys(targets).join("|")}>`
+  );
+  process.exit(1);
+}
+writeBuildInfo(target);
diff --git a/package.json b/package.json
index 0f0c9c6b..17d39ad4 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "build:all": "tsc -b tsconfig.all.json && npm run --workspaces build:assets --if-present",
     "build:clean": "tsc -b --clean",
     "test": "npm run --workspaces test --if-present && npm run -w apps/draupnir test:unit",
-    "lint": "eslint --cache 'packages/**/*.{ts,tsx}' 'apps/**/*.{ts,tsx}' && prettier --cache --ignore-unknown --check ."
+    "lint": "eslint --cache \"packages/**/*.{ts,tsx}\" \"apps/**/*.{ts,tsx}\" && prettier --cache --ignore-unknown --check ."
   },
   "devDependencies": {
     "@changesets/cli": "^2.30.0",