diff --git a/Cargo.lock b/Cargo.lock
index e7514e6..415e092 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -54,6 +54,17 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2bd12c1caf447e69cd4528f47f94d203fd2582878ecb9e9465484c4148a8223"
 
+[[package]]
+name = "calculator-lsp"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "lsp-server",
+ "lsp-types",
+ "numbat",
+ "serde_json",
+]
+
 [[package]]
 name = "cc"
 version = "1.0.83"
@@ -390,17 +401,6 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "qalc-inline"
-version = "0.1.0"
-dependencies = [
- "anyhow",
- "lsp-server",
- "lsp-types",
- "numbat",
- "serde_json",
-]
-
 [[package]]
 name = "quick-xml"
 version = "0.30.0"
diff --git a/Cargo.toml b/Cargo.toml
index 708c9bf..10b9d61 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "qalc-inline"
+name = "calculator-lsp"
 version = "0.1.0"
 edition = "2021"
 
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c46c4fc
--- /dev/null
+++ b/README.md
@@ -0,0 +1,13 @@
+# calculator lsp
+
+calculate through inlay hints
+
+```
+some text here
+
+  1 + 2 = 3
+```
+
+the lsp will calculate and display the `= 3`
+
+somewhat buggy and somewhat useful, use at your own risk
diff --git a/src/main.rs b/src/main.rs
index 552808a..4649740 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,4 @@
 use std::collections::HashMap;
-use std::io::Read;
-use std::process::Stdio;
 
 use lsp_types::{
     DidChangeTextDocumentParams, Position,
@@ -10,6 +8,9 @@ use lsp_types::{
 use lsp_types::{InitializeParams, ServerCapabilities};
 use lsp_server::{Connection, Message, Response};
 use anyhow::Error;
+use numbat::InterpreterResult;
+use numbat::module_importer::BuiltinModuleImporter;
+use numbat::resolver::CodeSource;
 
 fn main() -> Result<(), Error> {
     eprintln!("starting generic LSP server");
@@ -38,7 +39,7 @@ fn main_loop(
     
     let mut docs: HashMap<lsp_types::Url, Vec<String>> = HashMap::new();
     let mut context = {
-        let importer = numbat::module_importer::BuiltinModuleImporter::default();
+        let importer = BuiltinModuleImporter::default();
         numbat::Context::new(importer)
     };
 
@@ -62,44 +63,41 @@ fn main_loop(
                     for line_number in params.range.start.line..params.range.end.line {
                         let line = &doc[line_number as usize];
                         
-                        if line.trim().is_empty() || line.trim().starts_with('#') {
+                        if !line.chars().next().is_some_and(char::is_whitespace) {
                             continue;
                         }
 
-                        let result = context.interpret_with_settings(&mut settings, line, numbat::resolver::CodeSource::Text);
+                        let result = context.interpret_with_settings(&mut settings, line, CodeSource::Text);
 
                         let label = match result {
-                            Ok((result, status)) if status.is_success() => format!("= {:?}", result),
-                            _ => panic!(),
-                            // Err(error) => format!("= {}", result.trim()),
+                            Ok((_, result)) => match result {
+                                InterpreterResult::Value(value) => Some(format!("= {}", value)),
+                                InterpreterResult::Continue => None,
+                                InterpreterResult::Exit(_) => None,
+                            }
+                            Err(numbat::NumbatError::NameResolutionError(err)) => Some(format!("-> {}", err)),
+                            Err(numbat::NumbatError::ResolverError(err)) => Some(format!("-> {}", err)),
+                            Err(numbat::NumbatError::TypeCheckError(err)) => Some(format!("-> {}", err)),
+                            Err(numbat::NumbatError::RuntimeError(err)) => Some(format!("-> {}", err)),
                         };
 
-                        // let qalc = std::process::Command::new("qalc")
-                        //     .arg("-t")
-                        //     .arg(&line)
-                        //     .stdin(Stdio::null())
-                        //     .stdout(Stdio::piped())
-                        //     .stderr(Stdio::null())
-                        //     .spawn()?;
-                    
-                        // let mut result = String::new();
-                        // qalc.stdout.unwrap().read_to_string(&mut result)?;
-                        
-                        let hint = InlayHint {
-                            position: Position {
-                                line: line_number,
-                                character: line.len() as u32,
-                            },
-                            label: lsp_types::InlayHintLabel::String(label),
-                            kind: None,
-                            text_edits: None,
-                            tooltip: None,
-                            data: None,
-                            padding_left: Some(true),
-                            padding_right: None,
-                        };
+                        if let Some(label) = label {
+                            let hint = InlayHint {
+                                position: Position {
+                                    line: line_number,
+                                    character: line.len() as u32,
+                                },
+                                label: lsp_types::InlayHintLabel::String(label),
+                                kind: None,
+                                text_edits: None,
+                                tooltip: None,
+                                data: None,
+                                padding_left: Some(true),
+                                padding_right: None,
+                            };
 
-                        hints.push(hint);
+                            hints.push(hint);
+                        }
                     }
                     
                     eprintln!("calculated hints: {hints:?}");
@@ -131,8 +129,7 @@ fn main_loop(
                     "textDocument/didClose" => {
                         let params: DidCloseTextDocumentParams = serde_json::from_value(not.params)?;
                         docs.remove(&params.text_document.uri);
-                    }
-                    
+                    }                    
                     _ => {},
                 }
             }
diff --git a/test.num b/test.num
deleted file mode 100644
index b7fe249..0000000
--- a/test.num
+++ /dev/null
@@ -1,4 +0,0 @@
-1 + 1
-
-
-23984 * 92837438293847293847293847