diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1cbd653b..db0e4841 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -15,7 +15,7 @@ jobs:
               with:
                   deno-version: v2.x
             - name: Build
-              run: deno task debug
+              run: deno task debug-no-opt
             - name: Upload build artifacts
               uses: actions/upload-artifact@v4
               with:
@@ -24,25 +24,22 @@ jobs:
                       ./src/datex-web/datex_web.internal.js
                       ./src/datex-web/datex_web.wasm
                   retention-days: 5
-
-    test:
-        runs-on: ubuntu-latest
-        name: Test
+    lint:
+        name: Lint
         needs: build
+        runs-on: ubuntu-latest
         steps:
             - uses: actions/checkout@v4
               with:
                   submodules: "true"
+            - uses: denoland/setup-deno@v2
+              with:
+                  deno-version: v2.x
             - name: Download build artifacts
               uses: actions/download-artifact@v4
               with:
                   name: build
                   path: ./src/datex-web
-
-            - uses: denoland/setup-deno@v2
-              with:
-                  deno-version: v2.x
-
             - name: Check formatting
               run: deno fmt --check
 
@@ -52,6 +49,24 @@ jobs:
             - name: Type Checking
               run: deno check -I ./src ./test
 
+    test:
+        runs-on: ubuntu-latest
+        name: Test
+        needs: build
+        steps:
+            - uses: actions/checkout@v4
+              with:
+                  submodules: "true"
+            - name: Download build artifacts
+              uses: actions/download-artifact@v4
+              with:
+                  name: build
+                  path: ./src/datex-web
+
+            - uses: denoland/setup-deno@v2
+              with:
+                  deno-version: v2.x
+
             - name: Run Tests
               run: deno task test-no-build
 
diff --git a/Cargo.lock b/Cargo.lock
index e3b2dd6c..7b398b39 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -350,9 +350,8 @@ dependencies = [
 
 [[package]]
 name = "datex-core"
-version = "0.0.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "828f8fd2544e3e7062641e6e1bc64cf2d05d749f8f0765d0f4fd4e588c2a080d"
+version = "0.0.11"
+source = "git+https://github.com/unyt-org/datex?branch=release%2F0.0.11#fe3421a6e19ef07285ab914fd3436805e477f000"
 dependencies = [
  "ariadne",
  "async-select",
@@ -406,8 +405,7 @@ dependencies = [
 [[package]]
 name = "datex-crypto-facade"
 version = "0.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56ea2af04cab3b42b4ab122ed2e850a7837e6d402bb4b9a9ffe0b9cfca7ad26d"
+source = "git+https://github.com/unyt-org/datex?branch=release%2F0.0.11#fe3421a6e19ef07285ab914fd3436805e477f000"
 dependencies = [
  "bs58",
 ]
@@ -415,8 +413,7 @@ dependencies = [
 [[package]]
 name = "datex-crypto-web"
 version = "0.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07a56e4ff8e888b4609dd502a1f63e17fd669ae050eee06af97f2a195bdb77c0"
+source = "git+https://github.com/unyt-org/datex?branch=release%2F0.0.11#fe3421a6e19ef07285ab914fd3436805e477f000"
 dependencies = [
  "datex-crypto-facade",
  "wasm-bindgen",
@@ -427,8 +424,7 @@ dependencies = [
 [[package]]
 name = "datex-macros-internal"
 version = "0.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a6717768303603f37c8d6fd393ae7da7b78ae33b1ad0d6980253fa19005d0b84"
+source = "git+https://github.com/unyt-org/datex?branch=release%2F0.0.11#fe3421a6e19ef07285ab914fd3436805e477f000"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2283,9 +2279,9 @@ dependencies = [
 
 [[package]]
 name = "winnow"
-version = "0.7.14"
+version = "0.7.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a5364e9d77fcdeeaa6062ced926ee3381faa2ee02d3eb83a5c27a8825540829"
+checksum = "df79d97927682d2fd8adb29682d1140b343be4ac0f08fd68b7765d9c059d3945"
 dependencies = [
  "memchr",
 ]
@@ -2393,3 +2389,11 @@ name = "zmij"
 version = "1.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa"
+
+[[patch.unused]]
+name = "datex-core"
+version = "0.0.11"
+
+[[patch.unused]]
+name = "datex-crypto-facade"
+version = "0.0.2"
diff --git a/datex-browser-demo/package-lock.json b/datex-browser-demo/package-lock.json
index 3f0646ec..7c3fff41 100644
--- a/datex-browser-demo/package-lock.json
+++ b/datex-browser-demo/package-lock.json
@@ -37,7 +37,7 @@
         },
         "../npm": {
             "name": "@unyt/datex",
-            "version": "0.0.12",
+            "version": "0.0.14",
             "license": "MIT"
         },
         "node_modules/@babel/code-frame": {
diff --git a/datex-browser-demo/src/demo/demo-runtime.ts b/datex-browser-demo/src/demo/demo-runtime.ts
index fe27390f..1efb1b01 100644
--- a/datex-browser-demo/src/demo/demo-runtime.ts
+++ b/datex-browser-demo/src/demo/demo-runtime.ts
@@ -1,4 +1,4 @@
-import { Ref, Runtime } from "datex";
+import { Endpoint, Range, Ref, Runtime } from "datex";
 
 export const runtime = await Runtime.create(
     {
@@ -6,7 +6,7 @@ export const runtime = await Runtime.create(
             {
                 type: "websocket-client",
                 config: {
-                    url: "ws://localhost:8043",
+                    url: "wss://example.unyt.land",
                 },
             },
         ],
@@ -25,3 +25,9 @@ runtime.comHub.printMetadata();
 globalThis.Datex = runtime;
 // @ts-ignore global variable for debugging
 globalThis.Ref = Ref;
+
+// @ts-ignore global variable for debugging
+globalThis.Range = Range;
+
+// @ts-ignore global variable for debugging
+globalThis.Endpoint = Endpoint;
diff --git a/deno.json b/deno.json
index 0e8571f6..9c82bfc9 100644
--- a/deno.json
+++ b/deno.json
@@ -16,9 +16,9 @@
         ]
     },
     "tasks": {
-        "debug": "deno run -A scripts/build-wasm.ts --profile debug --features debug",
+        "debug": "deno run -A scripts/build-wasm.ts --profile debug",
         "release": "deno run -A scripts/build-wasm.ts --profile release",
-        "debug-unsecure": "deno run -A scripts/build-wasm.ts --profile debug --features debug,allow_unsigned_blocks",
+        "debug-unsecure": "deno run -A scripts/build-wasm.ts --profile debug --features allow_unsigned_blocks",
 
         "debug-no-opt": "deno task debug --no-opt",
         "test": "deno task debug-no-opt && deno test -A",
@@ -31,7 +31,7 @@
         "browser-demo-no-build": "deno task build-npm && cd datex-browser-demo && npm install && npm run dev",
 
         "fmt": "deno fmt && cargo fmt",
-        "lint": "deno lint --fix && cargo clippy --fix --features debug"
+        "lint": "deno lint --fix && cargo clippy --fix"
     },
     "fmt": {
         "indentWidth": 4,
diff --git a/rs-lib/Cargo.toml b/rs-lib/Cargo.toml
index 9b797513..973df437 100644
--- a/rs-lib/Cargo.toml
+++ b/rs-lib/Cargo.toml
@@ -20,16 +20,14 @@ panic = "abort"
 
 [dependencies]
 log = { version = "0.4", features = ["std", "serde"] }
-datex-core = { version = "0.0.10", default-features = false, features = [
+datex-core = { git = "https://github.com/unyt-org/datex", branch = "release/0.0.11", version = "0.0.11", default-features = false, features = [
     "target_wasm",
     "compiler",
     "decompiler",
     "syntax_highlighting_legacy",
     "lsp_wasm",
 ] }
-datex-crypto-facade = { version = "0.0.2" }
-
-# datex_macros = { git = "https://github.com/unyt-org/datex", branch = "refactor/update-loop", version = "0.1.3", package = "datex_macros" }
+datex-crypto-facade = { git = "https://github.com/unyt-org/datex", branch = "release/0.0.11", version = "0.0.2" }
 
 async-trait = "0.1.87"
 url = { version = "2.5.7" }
@@ -111,7 +109,6 @@ default = [
     "webrtc",
     "lsp",              # Make optional
 ]
-debug = []
 lsp = ["datex-core/lsp_wasm"]
 
 allow_unsigned_blocks = ["datex-core/allow_unsigned_blocks"]
diff --git a/src/dif/core.ts b/src/dif/core.ts
index d12aac14..4a1e0c2f 100644
--- a/src/dif/core.ts
+++ b/src/dif/core.ts
@@ -13,6 +13,7 @@ export const CoreTypeAddress = {
     map: "0c0000",
     never: "0d0000",
     unknown: "0e0000",
+    range: "100000",
     decimal: "2c0100",
     decimal_f32: "2d0100",
     decimal_f64: "2e0100",
diff --git a/src/dif/dif-handler.ts b/src/dif/dif-handler.ts
index a27bca2b..ca6b1ea1 100644
--- a/src/dif/dif-handler.ts
+++ b/src/dif/dif-handler.ts
@@ -1,6 +1,7 @@
 import type { JSRuntime, RuntimeDIFHandle } from "../datex.ts";
 import { Ref } from "../refs/ref.ts";
 import { Endpoint } from "../lib/special-core-types/endpoint.ts";
+import { Range } from "../lib/special-core-types/range.ts";
 import {
     type DIFArray,
     type DIFMap,
@@ -410,6 +411,20 @@ export class DIFHandler {
         } // endpoint types are resolved to Endpoint instances
         else if (type === CoreTypeAddress.endpoint) {
             return Endpoint.get(value.value as string) as T;
+        } else if (type === CoreTypeAddress.range) {
+            const [start, end] = value.value as DIFArray;
+            const result = this.promiseAllOrSync<number>([
+                this.resolveDIFValueContainer(start),
+                this.resolveDIFValueContainer(end),
+            ]);
+            if (result instanceof Promise) {
+                return result.then(([start, end]) => {
+                    return new Range(start, end) as T;
+                });
+            } else {
+                const [start, end] = result as number[];
+                return new Range(start, end) as T;
+            }
         } else if (type === CoreTypeAddress.list) {
             return this.promiseAllOrSync(
                 (value.value as DIFArray).map((v) => this.resolveDIFValueContainer(v)),
@@ -1142,6 +1157,14 @@ export class DIFHandler {
                 type: CoreTypeAddress.endpoint,
                 value: value.toString(),
             };
+        } else if (value instanceof Range) {
+            return {
+                type: CoreTypeAddress.range,
+                value: [
+                    this.convertJSValueToDIFValueContainer(value.start),
+                    this.convertJSValueToDIFValueContainer(value.end),
+                ],
+            };
         } else if (Array.isArray(value)) {
             return {
                 value: value.map((v) => this.convertJSValueToDIFValueContainer(v)),
diff --git a/src/lib/special-core-types/endpoint.ts b/src/lib/special-core-types/endpoint.ts
index 48e515a2..94ac3be3 100644
--- a/src/lib/special-core-types/endpoint.ts
+++ b/src/lib/special-core-types/endpoint.ts
@@ -52,11 +52,11 @@ export class Endpoint {
         return this.#endpoint;
     }
 
-    get [Symbol.toStringTag]() {
+    get [Symbol.toStringTag](): string {
         return this.#endpoint;
     }
 
-    get [Symbol.toPrimitive]() {
+    get [Symbol.toPrimitive](): string {
         return this.#endpoint;
     }
 }
diff --git a/src/lib/special-core-types/range.ts b/src/lib/special-core-types/range.ts
new file mode 100644
index 00000000..0b272c8d
--- /dev/null
+++ b/src/lib/special-core-types/range.ts
@@ -0,0 +1,37 @@
+/**
+ * Represents a range of numbers with a start and end.
+ */
+export class Range {
+    constructor(public start: number, public end: number) {}
+
+    /**
+     * Gets the length of the range (end - start).
+     */
+    get length(): number {
+        return this.end - this.start;
+    }
+
+    /**
+     * Checks if a given value is within the range (inclusive of start, exclusive of end).
+     * @param value The number to check.
+     * @returns True if the value is within the range, false otherwise.
+     */
+    public contains(value: number): boolean {
+        return value >= this.start && value < this.end;
+    }
+
+    /**
+     * Turns a string representation of the range in the format
+     * @returns The string representation of the range.
+     */
+    public toString(): string {
+        return `${this.start}..${this.end}`;
+    }
+
+    get [Symbol.toStringTag](): string {
+        return this.toString();
+    }
+    get [Symbol.toPrimitive](): string {
+        return this.toString();
+    }
+}
diff --git a/src/mod.ts b/src/mod.ts
index 88027378..c643a755 100644
--- a/src/mod.ts
+++ b/src/mod.ts
@@ -23,5 +23,7 @@
 export * from "./runtime/runtime.ts";
 export * as DIF from "./dif/mod.ts";
 export * as Network from "./network/mod.ts";
+export * from "./lib/special-core-types/endpoint.ts";
+export * from "./lib/special-core-types/range.ts";
 export * from "./refs/ref.ts";
 import "./utils/devtools-formatter.ts";
diff --git a/src/utils/devtools-formatter.ts b/src/utils/devtools-formatter.ts
index 13998e48..c9d14b20 100644
--- a/src/utils/devtools-formatter.ts
+++ b/src/utils/devtools-formatter.ts
@@ -1,4 +1,5 @@
 import { Endpoint } from "../lib/special-core-types/endpoint.ts";
+import { Range } from "../lib/special-core-types/range.ts";
 import { Ref } from "../refs/ref.ts";
 
 // @ts-ignore devtoolsFormatters
@@ -27,6 +28,26 @@ globalThis.devtoolsFormatters = [
                         ],
                     ],
                 ];
+            } else if (obj instanceof Range) {
+                return [
+                    "span",
+                    {},
+                    [
+                        "span",
+                        {},
+                        ["span", { style: "color: #d57258" }, `${obj.start}`],
+                    ],
+                    [
+                        "span",
+                        {},
+                        ["span", {}, `..`],
+                    ],
+                    [
+                        "span",
+                        {},
+                        ["span", { style: "color: #d57258" }, `${obj.end}`],
+                    ],
+                ];
             }
             return null; // fall back to default
         },
diff --git a/test/runtime/execute.test.ts b/test/runtime/execute.test.ts
index 56f1d210..3061cd6e 100644
--- a/test/runtime/execute.test.ts
+++ b/test/runtime/execute.test.ts
@@ -2,6 +2,7 @@ import { Runtime } from "../../src/runtime/runtime.ts";
 import { assertEquals } from "@std/assert";
 import { Endpoint } from "../../src/lib/special-core-types/endpoint.ts";
 import { CoreTypeAddress } from "../../src/dif/core.ts";
+import { Range } from "../../src/lib/special-core-types/range.ts";
 Deno.test("execute sync with string result", async () => {
     const runtime = await Runtime.create({ endpoint: "@jonas" });
     const script = "1 + 2";
@@ -112,6 +113,14 @@ Deno.test("execute sync endpoint", async () => {
     assertEquals(result, Endpoint.get("@jonas"));
 });
 
+Deno.test("execute sync range", async () => {
+    const runtime = await Runtime.create({ endpoint: "@jonas" });
+    const result = runtime.executeSync<Range>("1..2");
+    assertEquals(result.start, 1);
+    assertEquals(result.end, 2);
+    assertEquals(result, new Range(1, 2));
+});
+
 Deno.test("execute sync pass number from JS", async () => {
     const runtime = await Runtime.create({ endpoint: "@jonas" });
     const result = runtime.executeSync<number>("1 + ?", [41]);
diff --git a/test/runtime/value-parity.test.ts b/test/runtime/value-parity.test.ts
index 4367cc61..cf3fc3c9 100644
--- a/test/runtime/value-parity.test.ts
+++ b/test/runtime/value-parity.test.ts
@@ -4,7 +4,9 @@
  * This is a test for the full integration of the JS runtime with the DATEX runtime.
  * NOTE: as more JS values are supported, this test should be extended to cover all of them.
  */
-import { Runtime } from "../../src/runtime/runtime.ts";
+import { Endpoint } from "datex/lib/special-core-types/endpoint.ts";
+import { Runtime } from "datex/runtime/runtime.ts";
+import { Range } from "datex/lib/special-core-types/range.ts";
 import { assertEquals } from "@std/assert";
 
 /**
@@ -38,6 +40,8 @@ const TEST_VALUES = [
     Infinity,
     -Infinity,
     2000n,
+    Endpoint.get("@test"),
+    new Range(1, 2),
 ] as const;
 
 // initialization of the test cases