diff --git a/Cargo.lock b/Cargo.lock
index b090e76..b4b35b0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -46,6 +46,15 @@ dependencies = [
  "zerocopy",
 ]
 
+[[package]]
+name = "aho-corasick"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "aliasable"
 version = "0.1.3"
@@ -138,18 +147,19 @@ dependencies = [
 
 [[package]]
 name = "async-tungstenite"
-version = "0.23.0"
+version = "0.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1e9efbe14612da0a19fb983059a0b621e9cf6225d7018ecab4f9988215540dc"
+checksum = "ef0f8d64ef9351752fbe5462f242c625d9c4910d2bc3f7ec44c43857ca123f5d"
 dependencies = [
  "futures-io",
  "futures-util",
  "log",
  "pin-project-lite",
+ "rustls-pki-types",
  "tokio",
- "tokio-rustls 0.24.1",
- "tungstenite 0.20.1",
- "webpki-roots 0.25.4",
+ "tokio-rustls 0.25.0",
+ "tungstenite",
+ "webpki-roots 0.26.1",
 ]
 
 [[package]]
@@ -208,6 +218,29 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "bindgen"
+version = "0.65.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfdf7b466f9a4903edc73f95d6d2bcd5baf8ae620638762244d3f60143643cc5"
+dependencies = [
+ "bitflags 1.3.2",
+ "cexpr",
+ "clang-sys",
+ "lazy_static",
+ "lazycell",
+ "log",
+ "peeking_take_while",
+ "prettyplease",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "rustc-hash",
+ "shlex",
+ "syn 2.0.53",
+ "which",
+]
+
 [[package]]
 name = "bit-set"
 version = "0.5.3"
@@ -361,6 +394,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6d43a04d8753f35258c91f8ec639f792891f748a1edbd759cf1dcea3382ad83c"
 
+[[package]]
+name = "cexpr"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6fac387a98bb7c37292057cffc56d62ecb629900026402633ae9160df93a8766"
+dependencies = [
+ "nom 7.1.3",
+]
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -394,6 +436,17 @@ dependencies = [
  "windows-targets 0.52.4",
 ]
 
+[[package]]
+name = "clang-sys"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67523a3b4be3ce1989d607a828d036249522dd9c1c8de7f4dd2dae43a37369d1"
+dependencies = [
+ "glob",
+ "libc",
+ "libloading 0.8.3",
+]
+
 [[package]]
 name = "clipboard-win"
 version = "5.3.0"
@@ -791,6 +844,7 @@ dependencies = [
  "iced",
  "iced_futures",
  "meval",
+ "ngnk",
  "serde",
  "serde_json",
  "tokio",
@@ -1150,6 +1204,12 @@ version = "0.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "151665d9be52f9bb40fc7966565d39666f2d1e69233571b71b87791c7e0528b3"
 
+[[package]]
+name = "glob"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2fabcfbdc87f4758337ca535fb41a6d701b65693ce38287d856d1674551ec9b"
+
 [[package]]
 name = "glow"
 version = "0.13.1"
@@ -1323,6 +1383,15 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dfa686283ad6dd069f105e5ab091b04c62850d3e4cf5d67debad1933f55023df"
 
+[[package]]
+name = "home"
+version = "0.5.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3d1354bf6b7235cb4a0576c2619fd4ed18183f689b12b006a0ee7329eeff9a5"
+dependencies = [
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "http"
 version = "0.2.12"
@@ -1790,6 +1859,12 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
+[[package]]
+name = "lazycell"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
+
 [[package]]
 name = "lebe"
 version = "0.5.2"
@@ -1942,7 +2017,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f79496a5651c8d57cd033c5add8ca7ee4e3d5f7587a4777484640d9cb60392d9"
 dependencies = [
  "fnv",
- "nom",
+ "nom 1.2.4",
 ]
 
 [[package]]
@@ -1951,6 +2026,12 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "minimal-lexical"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
+
 [[package]]
 name = "miniz_oxide"
 version = "0.7.2"
@@ -2028,12 +2109,31 @@ dependencies = [
  "jni-sys",
 ]
 
+[[package]]
+name = "ngnk"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad2596587b5eb936642ff49304d4a6b32b9a9be93e6a82faf7a11ae763edea30"
+dependencies = [
+ "bindgen",
+]
+
 [[package]]
 name = "nom"
 version = "1.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a5b8c256fd9471521bcb84c3cdba98921497f1a331cbc15b8030fc63b82050ce"
 
+[[package]]
+name = "nom"
+version = "7.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
+dependencies = [
+ "memchr",
+ "minimal-lexical",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.18"
@@ -2270,6 +2370,12 @@ version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
 
+[[package]]
+name = "peeking_take_while"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.1"
@@ -2381,6 +2487,16 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e8cf8e6a8aa66ce33f63993ffc4ea4271eb5b0530a9002db8455ea6050c77bfa"
 
+[[package]]
+name = "prettyplease"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d3928fb5db768cb86f891ff014f0144589297e3c6a1aba6ed7cecfdace270c7"
+dependencies = [
+ "proc-macro2",
+ "syn 2.0.53",
+]
+
 [[package]]
 name = "proc-macro-crate"
 version = "3.1.0"
@@ -2566,6 +2682,35 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "regex"
+version = "1.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c117dbdfde9c8308975b6a18d71f3f385c89461f7b3fb054288ecf2a2058ba4c"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86b83b8b9847f9bf95ef68afb0b8e6cdb80f498442f5179a29fad448fcc1eaea"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adad44e29e4c806119491a7f06f03de4d1af22c3a680dd47f1e6e179439d1f56"
+
 [[package]]
 name = "renderdoc-sys"
 version = "1.1.0"
@@ -2921,6 +3066,12 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.1"
@@ -3341,7 +3492,7 @@ dependencies = [
  "rustls-pki-types",
  "tokio",
  "tokio-rustls 0.25.0",
- "tungstenite 0.21.0",
+ "tungstenite",
  "webpki-roots 0.26.1",
 ]
 
@@ -3431,26 +3582,6 @@ version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "17f77d76d837a7830fe1d4f12b7b4ba4192c1888001c7164257e4bc6d21d96b4"
 
-[[package]]
-name = "tungstenite"
-version = "0.20.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e3dac10fd62eaf6617d3a904ae222845979aec67c615d1c842b4002c7666fb9"
-dependencies = [
- "byteorder",
- "bytes",
- "data-encoding",
- "http 0.2.12",
- "httparse",
- "log",
- "rand",
- "rustls 0.21.10",
- "sha1",
- "thiserror",
- "url",
- "utf-8",
-]
-
 [[package]]
 name = "tungstenite"
 version = "0.21.0"
@@ -4006,6 +4137,18 @@ dependencies = [
  "web-sys",
 ]
 
+[[package]]
+name = "which"
+version = "4.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87ba24419a2078cd2b0f2ede2691b6c66d8e47836da3b6db8265ebad47afbfc7"
+dependencies = [
+ "either",
+ "home",
+ "once_cell",
+ "rustix",
+]
+
 [[package]]
 name = "widestring"
 version = "1.0.2"
diff --git a/Cargo.toml b/Cargo.toml
index efbe1ec..5054121 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,6 +3,10 @@ name = "dynasty"
 version = "0.1.0"
 edition = "2021"
 description = "Desktop terminal for cryptocurrency exchanges"
+[package.metadata.bundle]
+name = "Dynasty"
+identifier = "io.github.me.dynasty"
+icon = ["assets/dynasty.icns"]
 
 [dependencies]
 binance-rs-async = { version = "1.3.2", default_features = false, features = ["rustls-tls", "wallet_api"] }
@@ -13,23 +17,14 @@ iced_futures = "0.12.0"
 meval = "0.2.0"
 serde = { version = "1.0.197", features = ["derive"] }
 serde_json = "1.0.114"
+async-tungstenite = { version = "0.25", features = ["tokio-rustls-webpki-roots"]}
+tokio = { version = "1.32.0", default-features = false, features=["sync"]}
+ngnk = { version = "*", optional = true }
 
-[dependencies.async-tungstenite]
-version = "0.23"
-features = ["tokio-rustls-webpki-roots"]
-
-[dependencies.tokio]
-version = "1.32.0"
-default-features = false
-features = ["sync"]
+[features]
+k = ["dep:ngnk"]
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 directories-next = "2.0"
-
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 web-sys = { version = "0.3", features = ["Window", "Storage"] }
-
-[package.metadata.bundle]
-name = "Dynasty"
-identifier = "io.github.me.dynasty"
-icon = ["assets/dynasty.icns"]
diff --git a/src/views/panes/calculator.rs b/src/views/panes/calculator.rs
index 6f3b427..b25f1dc 100644
--- a/src/views/panes/calculator.rs
+++ b/src/views/panes/calculator.rs
@@ -7,7 +7,24 @@ use iced::{
     },
     Element, Font, Length,
 };
-use meval::{Context, Expr};
+use meval::Context;
+
+#[cfg(not(feature = "k"))]
+fn e(line: &str, ctx: &Context) -> String {
+    use meval::Expr;
+    format!(
+        "{}",
+        line.parse::<Expr>()
+            .unwrap()
+            .eval_with_context(ctx)
+            .unwrap_or_default()
+    )
+}
+#[cfg(feature = "k")]
+fn e(line: &str, _ctx: &Context) -> String {
+    use ngnk::K0;
+    K0(line.to_string(), vec![]).to_string()
+}
 
 pub fn calculator_view<'a>(
     content: &'a Content,
@@ -19,14 +36,7 @@ pub fn calculator_view<'a>(
             column![
                 text_editor::TextEditor::new(content)
                     .height(Length::Fill)
-                    .on_action(Message::CalcAction), // .style(|_theme, _status| text_editor::Appearance {
-                //     border: iced::Border {
-                //         width: 0.0,
-                //         radius: 0.0.into(),
-                //         color: Default::default()
-                //     },
-                //     background: iced::Background::Color(Color::from_rgb(0.07, 0.07, 0.07)),
-                // })
+                    .on_action(Message::CalcAction),
                 container(
                     button(text("\u{F4F5}").font(Font::with_name("bootstrap-icons")))
                         .style(iced::theme::Button::Custom(Box::new(GreenBtn {})))
@@ -42,14 +52,7 @@ pub fn calculator_view<'a>(
                 content
                     .text()
                     .lines()
-                    .map(|line| {
-                        text(
-                            line.parse::<Expr>()
-                                .unwrap()
-                                .eval_with_context(ctx)
-                                .unwrap_or_default(),
-                        )
-                    })
+                    .map(|line| { text(e(line, ctx)) })
                     .map(Element::from)
             ),
             Space::new(Length::Fill, Length::Fill),