diff --git a/rustfmt.toml b/rustfmt.toml
index 0a88f15..cb4ca31 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -2,6 +2,7 @@ unstable_features = true
 
 hard_tabs = true
 tab_spaces = 4
+max_width = 92
 
 trailing_semicolon = false
 trailing_comma = "Vertical"
diff --git a/talc-bin/src/main.rs b/talc-bin/src/main.rs
index 7647f3f..b76114d 100644
--- a/talc-bin/src/main.rs
+++ b/talc-bin/src/main.rs
@@ -1,6 +1,8 @@
 use clap::{ColorChoice, Parser};
 use std::{path::PathBuf, process::ExitCode, rc::Rc};
-use talc_lang::{compiler::compile, parser, symbol::Symbol, value::function::disasm_recursive, Vm};
+use talc_lang::{
+	compiler::compile, parser, symbol::Symbol, value::function::disasm_recursive, Vm,
+};
 
 mod helper;
 mod repl;
diff --git a/talc-lang/src/chunk.rs b/talc-lang/src/chunk.rs
index d32e938..73920b2 100644
--- a/talc-lang/src/chunk.rs
+++ b/talc-lang/src/chunk.rs
@@ -110,12 +110,12 @@ pub enum Instruction {
 	LoadGlobal(Arg24),  // load global by id
 	StoreGlobal(Arg24), // store global by id
 
-	CloseOver(Arg24),        // load nth local and convert to cell, write back a copy
-	Closure(Arg24),          // load constant function and fill state from stack
-	LoadUpvalue(Arg24),      // load
-	StoreUpvalue(Arg24),     // store a cell from closure state to new local
-	ContinueUpvalue(Arg24),  //
-	LoadClosedLocal(Arg24),  // load through cell in nth local
+	CloseOver(Arg24),   // load nth local and convert to cell, write back a copy
+	Closure(Arg24),     // load constant function and fill state from stack
+	LoadUpvalue(Arg24), // load
+	StoreUpvalue(Arg24), // store a cell from closure state to new local
+	ContinueUpvalue(Arg24), //
+	LoadClosedLocal(Arg24), // load through cell in nth local
 	StoreClosedLocal(Arg24), // store through cell in nth local
 
 	Const(Arg24),  // push nth constant
diff --git a/talc-lang/src/parser/parser.rs b/talc-lang/src/parser/parser.rs
index ebef907..c7ce3c6 100644
--- a/talc-lang/src/parser/parser.rs
+++ b/talc-lang/src/parser/parser.rs
@@ -7,8 +7,8 @@ use crate::{
 
 use super::{
 	ast::{BinaryOp, CatchBlock, Expr, ExprKind, LValue, UnaryOp},
-	parse_float, parse_int_literal, parse_str_escapes, Lexer, ParserError, Span, SpanParserError,
-	Token, TokenKind,
+	parse_float, parse_int_literal, parse_str_escapes, Lexer, ParserError, Span,
+	SpanParserError, Token, TokenKind,
 };
 use num_complex::Complex64;
 use ExprKind as E;
@@ -159,27 +159,24 @@ fn b<T>(t: T) -> Box<T> {
 
 impl TokenKind {
 	fn expr_first(self) -> bool {
-		matches!(self, |T::Return| T::Var
-			| T::Global
-			| T::Fn | T::Not
-			| T::Backslash
-			| T::Colon
-			| T::Minus
-			| T::Identifier
-			| T::LParen
-			| T::LBrack
-			| T::LBrace
-			| T::Dollar
-			| T::Do | T::If
-			| T::While
-			| T::For | T::Try
-			| T::Integer
-			| T::Float
-			| T::Imaginary
-			| T::String
-			| T::Symbol
-			| T::True | T::False
-			| T::Nil)
+		matches!(
+			self,
+			T::Return
+				| T::Var | T::Global
+				| T::Fn | T::Not
+				| T::Backslash
+				| T::Colon | T::Minus
+				| T::Identifier
+				| T::LParen | T::LBrack
+				| T::LBrace | T::Dollar
+				| T::Do | T::If
+				| T::While | T::For
+				| T::Try | T::Integer
+				| T::Float | T::Imaginary
+				| T::String | T::Symbol
+				| T::True | T::False
+				| T::Nil
+		)
 	}
 }
 
@@ -371,7 +368,8 @@ impl<'s> Parser<'s> {
 				Ok(E::Literal(x.into()).span(tok.span))
 			}
 			T::Imaginary => {
-				let x = parse_float(&tok.content[..tok.content.len() - 1]).span_err(tok.span)?;
+				let x = parse_float(&tok.content[..tok.content.len() - 1])
+					.span_err(tok.span)?;
 				Ok(E::Literal(Complex64::new(0.0, x).into()).span(tok.span))
 			}
 			T::String => {
@@ -388,7 +386,8 @@ impl<'s> Parser<'s> {
 				let s = match inner.chars().next() {
 					Some('\'') => Symbol::get(&inner[1..inner.len() - 1]),
 					Some('\"') => Symbol::get(
-						&parse_str_escapes(&inner[1..inner.len() - 1]).span_err(tok.span)?,
+						&parse_str_escapes(&inner[1..inner.len() - 1])
+							.span_err(tok.span)?,
 					),
 					_ => Symbol::get(inner),
 				};
diff --git a/talc-lang/src/value/function.rs b/talc-lang/src/value/function.rs
index aa5fd54..4b4f164 100644
--- a/talc-lang/src/value/function.rs
+++ b/talc-lang/src/value/function.rs
@@ -67,7 +67,10 @@ impl std::fmt::Debug for NativeFunc {
 	}
 }
 
-pub fn disasm_recursive(f: &Rc<Function>, w: &mut impl std::io::Write) -> std::io::Result<()> {
+pub fn disasm_recursive(
+	f: &Rc<Function>,
+	w: &mut impl std::io::Write,
+) -> std::io::Result<()> {
 	writeln!(w, "{} ({})", Value::Function(f.clone()), f.attrs.arity)?;
 	if !f.chunk.consts.is_empty() {
 		writeln!(w, "constants")?;
diff --git a/talc-lang/src/vm.rs b/talc-lang/src/vm.rs
index 1575008..66018c9 100644
--- a/talc-lang/src/vm.rs
+++ b/talc-lang/src/vm.rs
@@ -10,7 +10,9 @@ use crate::{
 	exception::{throw, Exception, Result},
 	lstring::LStr,
 	parser::ast::{BinaryOp, UnaryOp},
-	symbol::{Symbol, SYM_CALL_STACK_OVERFLOW, SYM_INTERRUPTED, SYM_NAME_ERROR, SYM_TYPE_ERROR},
+	symbol::{
+		Symbol, SYM_CALL_STACK_OVERFLOW, SYM_INTERRUPTED, SYM_NAME_ERROR, SYM_TYPE_ERROR,
+	},
 	value::{
 		function::{FuncAttrs, Function, NativeFunc},
 		Value,
@@ -198,7 +200,9 @@ impl Vm {
 			while let Some(try_frame) = frame.try_frames.pop() {
 				let table = &frame.func.chunk.try_tables[try_frame.idx];
 				for catch in &table.catches {
-					if catch.types.is_none() || catch.types.as_ref().unwrap().contains(&exc.ty) {
+					if catch.types.is_none()
+						|| catch.types.as_ref().unwrap().contains(&exc.ty)
+					{
 						frame.ip = catch.addr;
 						frame.locals.truncate(table.local_count);
 						self.stack.truncate(try_frame.stack_len);
@@ -241,7 +245,11 @@ impl Vm {
 		Ok(())
 	}
 
-	fn run_instr(&mut self, frame: &mut CallFrame, instr: Instruction) -> Result<Option<Value>> {
+	fn run_instr(
+		&mut self,
+		frame: &mut CallFrame,
+		instr: Instruction,
+	) -> Result<Option<Value>> {
 		use Instruction as I;
 
 		match instr {
diff --git a/talc-std/src/collection.rs b/talc-std/src/collection.rs
index 445030b..db02366 100644
--- a/talc-std/src/collection.rs
+++ b/talc-std/src/collection.rs
@@ -149,7 +149,8 @@ fn insertion_by(vals: &mut [Value], by: &Value, vm: &mut Vm) -> Result<()> {
 	for i in 0..vals.len() {
 		let mut j = i;
 		while j > 0 {
-			let ord = call_comparison(vm, by.clone(), vals[j - 1].clone(), vals[j].clone())?;
+			let ord =
+				call_comparison(vm, by.clone(), vals[j - 1].clone(), vals[j].clone())?;
 			if ord <= 0 {
 				break
 			}
diff --git a/talc-std/src/exception.rs b/talc-std/src/exception.rs
index 9fec58e..365801a 100644
--- a/talc-std/src/exception.rs
+++ b/talc-std/src/exception.rs
@@ -15,12 +15,18 @@ pub fn throw(_: &mut Vm, args: Vec<Value>) -> Result<Value> {
 		Value::Symbol(ty) => Exception::new(ty),
 		Value::List(l) => match l.borrow().as_slice() {
 			[Value::Symbol(ty)] | [Value::Symbol(ty), Value::Nil] => Exception::new(*ty),
-			[Value::Symbol(ty), Value::Nil, data] => Exception::new_with_data(*ty, data.clone()),
-			[Value::Symbol(ty), Value::String(s)] => Exception::new_with_msg(*ty, s.clone()),
+			[Value::Symbol(ty), Value::Nil, data] => {
+				Exception::new_with_data(*ty, data.clone())
+			}
+			[Value::Symbol(ty), Value::String(s)] => {
+				Exception::new_with_msg(*ty, s.clone())
+			}
 			[Value::Symbol(ty), Value::String(s), data] => {
 				Exception::new_with_msg_data(*ty, s.clone(), data.clone())
 			}
-			[] | [_] | [_, _] | [_, _, _] => throw!(*SYM_TYPE_ERROR, "wrong argument for throw"),
+			[] | [_] | [_, _] | [_, _, _] => {
+				throw!(*SYM_TYPE_ERROR, "wrong argument for throw")
+			}
 			[_, _, _, _, ..] => throw!(
 				*SYM_VALUE_ERROR,
 				"too many elements in list argument for throw"
diff --git a/talc-std/src/file.rs b/talc-std/src/file.rs
index 0a52c94..0a11ca9 100644
--- a/talc-std/src/file.rs
+++ b/talc-std/src/file.rs
@@ -115,7 +115,9 @@ impl BufFile {
 		}
 	}
 
-	fn try_into_raw_fd(self) -> std::result::Result<RawFd, IntoInnerError<BufWriter<File>>> {
+	fn try_into_raw_fd(
+		self,
+	) -> std::result::Result<RawFd, IntoInnerError<BufWriter<File>>> {
 		match self {
 			BufFile::Buffered { r, w } => {
 				let _ = w.into_inner()?.into_raw_fd();
diff --git a/talc-std/src/format.rs b/talc-std/src/format.rs
index 91f7436..afc9829 100644
--- a/talc-std/src/format.rs
+++ b/talc-std/src/format.rs
@@ -203,7 +203,11 @@ impl<'p> FmtParser<'p> {
 	}
 }
 
-fn get_arg<'a>(args: &'a [Value], n: Option<usize>, faidx: &mut usize) -> Result<&'a Value> {
+fn get_arg<'a>(
+	args: &'a [Value],
+	n: Option<usize>,
+	faidx: &mut usize,
+) -> Result<&'a Value> {
 	let i = match n {
 		Some(n) => n,
 		None => {
@@ -255,7 +259,9 @@ fn format_float(
 		(None, FmtType::Repr) => write!(buf, "{:#}", Value::Float(f)),
 		(None, FmtType::Exp(true)) => write!(buf, "{:E}", f),
 		(None, FmtType::Exp(false)) => write!(buf, "{:e}", f),
-		(Some(p), FmtType::Str) | (Some(p), FmtType::Repr) => write!(buf, "{0:.1$}", f, p),
+		(Some(p), FmtType::Str) | (Some(p), FmtType::Repr) => {
+			write!(buf, "{0:.1$}", f, p)
+		}
 		(Some(p), FmtType::Exp(true)) => write!(buf, "{0:.1$E}", f, p),
 		(Some(p), FmtType::Exp(false)) => write!(buf, "{0:.1$e}", f, p),
 		_ => throw!(*SYM_FORMAT_ERROR, "invalid format specifier for {ty_name}"),
@@ -301,14 +307,24 @@ fn format_int(
 	res.map_err(|e| exception!(*SYM_FORMAT_ERROR, "{e}"))
 }
 
-fn format_ratio(n: Rational64, prec: Option<usize>, ty: FmtType, buf: &mut LString) -> Result<()> {
+fn format_ratio(
+	n: Rational64,
+	prec: Option<usize>,
+	ty: FmtType,
+	buf: &mut LString,
+) -> Result<()> {
 	format_int(*n.numer(), prec, ty, buf, "ratio")?;
 	buf.push_char('/');
 	format_int(*n.denom(), prec, ty, buf, "ratio")?;
 	Ok(())
 }
 
-fn format_value(v: &Value, prec: Option<usize>, ty: FmtType, buf: &mut LString) -> Result<()> {
+fn format_value(
+	v: &Value,
+	prec: Option<usize>,
+	ty: FmtType,
+	buf: &mut LString,
+) -> Result<()> {
 	if prec.is_some() {
 		throw!(*SYM_FORMAT_ERROR, "invalid format specifier for value")
 	}
@@ -320,7 +336,12 @@ fn format_value(v: &Value, prec: Option<usize>, ty: FmtType, buf: &mut LString)
 	res.map_err(|e| exception!(*SYM_FORMAT_ERROR, "{e}"))
 }
 
-fn format_string(mut s: &LStr, prec: Option<usize>, ty: FmtType, buf: &mut LString) -> Result<()> {
+fn format_string(
+	mut s: &LStr,
+	prec: Option<usize>,
+	ty: FmtType,
+	buf: &mut LString,
+) -> Result<()> {
 	if let Some(prec) = prec {
 		s = &s[..prec]
 	}
@@ -341,7 +362,12 @@ fn pad_str(n: usize, c: char, buf: &mut LString) {
 	}
 }
 
-fn format_arg(args: &[Value], faidx: &mut usize, code: &LStr, res: &mut LString) -> Result<()> {
+fn format_arg(
+	args: &[Value],
+	faidx: &mut usize,
+	code: &LStr,
+	res: &mut LString,
+) -> Result<()> {
 	if !code.is_utf8() {
 		throw!(
 			*SYM_FORMAT_ERROR,
diff --git a/talc-std/src/random.rs b/talc-std/src/random.rs
index e48a3b3..72f1826 100644
--- a/talc-std/src/random.rs
+++ b/talc-std/src/random.rs
@@ -46,8 +46,12 @@ pub fn rand_in(vm: &mut Vm, args: Vec<Value>) -> Result<Value> {
 				throw!(*SYM_VALUE_ERROR, "rand_in: empty range")
 			}
 			match r.ty {
-				RangeType::Open => Ok(Value::Int(rand::thread_rng().gen_range(r.start..r.stop))),
-				RangeType::Closed => Ok(Value::Int(rand::thread_rng().gen_range(r.start..=r.stop))),
+				RangeType::Open => {
+					Ok(Value::Int(rand::thread_rng().gen_range(r.start..r.stop)))
+				}
+				RangeType::Closed => {
+					Ok(Value::Int(rand::thread_rng().gen_range(r.start..=r.stop)))
+				}
 				RangeType::Endless => throw!(*SYM_VALUE_ERROR, "rand_in: endless range"),
 			}
 		}
diff --git a/talc-std/src/value.rs b/talc-std/src/value.rs
index ef79336..5102e65 100644
--- a/talc-std/src/value.rs
+++ b/talc-std/src/value.rs
@@ -323,8 +323,8 @@ pub fn compile(_: &mut Vm, args: Vec<Value>) -> Result<Value> {
 			"compile: argument must be valid unicode ({e})"
 		)
 	})?;
-	let ast =
-		talc_lang::parser::parse(src).map_err(|e| exception!(symbol!("parse_error"), "{e}"))?;
+	let ast = talc_lang::parser::parse(src)
+		.map_err(|e| exception!(symbol!("parse_error"), "{e}"))?;
 	let func = talc_lang::compiler::compile(&ast, None);
 	Ok(func.into())
 }