feat(declib): initial mastodon bot experiment

No default.nix yet, just for development.

Change-Id: Ib8bd0057d697fecd083d5961e635c770b7638e08
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10803
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI

users/Profpatsch/declib/tsconfig.json

@@ -0,0 +1,25 @@
+{
+  "compilerOptions": {
+    "strict": true,
+    "module": "NodeNext",
+    "sourceMap": true,
+    "outDir": "output",
+    "target": "ES6",
+    "lib": [],
+    "typeRoots": ["node_modules/@types", "shims/@types"],
+    "moduleResolution": "NodeNext",
+
+    // importHelpers & downlevelIteration will reduce the generated javascript for new language features.
+    // `importHelpers` requires the `tslib` dependency.
+    // "downlevelIteration": true,
+    // "importHelpers": true
+    "noFallthroughCasesInSwitch": true,
+    "noImplicitOverride": true,
+    "noImplicitReturns": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noUncheckedIndexedAccess": true,
+
+  },
+
+  "files": ["index.ts"]
+}