diff --git a/examples/errors.rs b/examples/errors.rs
index f86bf68..a5b26ba 100644
--- a/examples/errors.rs
+++ b/examples/errors.rs
@@ -1,20 +1,20 @@
-use eww_config::{
-    format_diagnostic::ToDiagnostic,
-    parser::{ast::*, from_ast::FromAst},
-};
+// use eww_config::{
+// format_diagnostic::ToDiagnostic,
+// parser::{ast::*, from_ast::FromAst},
+//};
 
 fn main() {
-    let mut files = codespan_reporting::files::SimpleFiles::new();
+    // let mut files = codespan_reporting::files::SimpleFiles::new();
 
-    let input = r#"
-        (heyho ; :foo { "foo \" } bar " }
-               ; :baz {(foo == bar ? 12.2 : 12)}
-          (foo)
-          (defwidget foo [something bla] "foo")
-          (baz))"#;
+    // let input = r#"
+    //(heyho ; :foo { "foo \" } bar " }
+    //; :baz {(foo == bar ? 12.2 : 12)}
+    //(foo)
+    //(defwidget foo [something bla] "foo")
+    //(baz))"#;
 
-    let file_id = files.add("foo.eww", input);
-    let ast = eww_config::parser::parse_string(file_id, input);
+    // let file_id = files.add("foo.eww", input);
+    // let ast = eww_config::parser::parse_string(file_id, input);
     // match ast.and_then(eww_config::parser::from_ast::Element::<Ast, Ast>::from_ast) {
     // Ok(ast) => {
     // println!("{:?}", ast);
diff --git a/src/config/config.rs b/src/config/config.rs
index 556c850..b969b4f 100644
--- a/src/config/config.rs
+++ b/src/config/config.rs
@@ -14,7 +14,6 @@ use crate::{
         ast_iterator::AstIterator,
         from_ast::{FromAst, FromAstElementContent},
     },
-    spanned,
     value::{AttrName, VarName},
 };
 
@@ -28,25 +27,19 @@ pub enum TopLevel {
 impl FromAst for TopLevel {
     fn from_ast(e: Ast) -> AstResult<Self> {
         let span = e.span();
-        spanned!(e.span(), {
-            let mut iter = e.try_ast_iter()?;
-            let (sym_span, element_name) = iter.expect_symbol()?;
-            match element_name.as_str() {
-                x if x == WidgetDefinition::get_element_name() => {
-                    Self::WidgetDefinition(WidgetDefinition::from_tail(span, iter)?)
-                }
-                x if x == VarDefinition::get_element_name() => Self::VarDefinition(VarDefinition::from_tail(span, iter)?),
-                x if x == PollScriptVar::get_element_name() => {
-                    Self::ScriptVarDefinition(ScriptVarDefinition::Poll(PollScriptVar::from_tail(span, iter)?))
-                }
-                x if x == TailScriptVar::get_element_name() => {
-                    Self::ScriptVarDefinition(ScriptVarDefinition::Tail(TailScriptVar::from_tail(span, iter)?))
-                }
-                x if x == WindowDefinition::get_element_name() => {
-                    Self::WindowDefinition(WindowDefinition::from_tail(span, iter)?)
-                }
-                x => return Err(AstError::UnknownToplevel(Some(sym_span), x.to_string())),
+        let mut iter = e.try_ast_iter()?;
+        let (sym_span, element_name) = iter.expect_symbol()?;
+        Ok(match element_name.as_str() {
+            x if x == WidgetDefinition::get_element_name() => Self::WidgetDefinition(WidgetDefinition::from_tail(span, iter)?),
+            x if x == VarDefinition::get_element_name() => Self::VarDefinition(VarDefinition::from_tail(span, iter)?),
+            x if x == PollScriptVar::get_element_name() => {
+                Self::ScriptVarDefinition(ScriptVarDefinition::Poll(PollScriptVar::from_tail(span, iter)?))
             }
+            x if x == TailScriptVar::get_element_name() => {
+                Self::ScriptVarDefinition(ScriptVarDefinition::Tail(TailScriptVar::from_tail(span, iter)?))
+            }
+            x if x == WindowDefinition::get_element_name() => Self::WindowDefinition(WindowDefinition::from_tail(span, iter)?),
+            x => return Err(AstError::UnknownToplevel(sym_span, x.to_string())),
         })
     }
 }
diff --git a/src/config/script_var_definition.rs b/src/config/script_var_definition.rs
index 4089cda..2d12424 100644
--- a/src/config/script_var_definition.rs
+++ b/src/config/script_var_definition.rs
@@ -9,7 +9,6 @@ use crate::{
         ast_iterator::AstIterator,
         from_ast::{FromAst, FromAstElementContent},
     },
-    spanned,
     value::{AttrName, VarName},
 };
 
@@ -50,8 +49,8 @@ impl FromAstElementContent for PollScriptVar {
     fn from_tail<I: Iterator<Item = Ast>>(span: Span, mut iter: AstIterator<I>) -> AstResult<Self> {
         let (_, name) = iter.expect_symbol()?;
         let mut attrs = iter.expect_key_values()?;
-        let interval: String = attrs.primitive_required("interval")?;
-        let interval = crate::util::parse_duration(&interval).map_err(|e| AstError::Other(Some(span), e.into()))?;
+        let interval = attrs.primitive_required::<DynVal, _>("interval")?.as_duration()?;
+        // let interval = interval.as_duration()?;
         let (_, script) = iter.expect_literal()?;
         Ok(Self { name: VarName(name), command: VarSource::Shell(script.to_string()), interval })
     }
diff --git a/src/config/validate.rs b/src/config/validate.rs
index e4ca804..153656a 100644
--- a/src/config/validate.rs
+++ b/src/config/validate.rs
@@ -9,7 +9,6 @@ use crate::{
         ast_iterator::AstIterator,
         from_ast::FromAst,
     },
-    spanned,
     value::{AttrName, VarName},
 };
 
diff --git a/src/config/var_definition.rs b/src/config/var_definition.rs
index 29d5364..da458d5 100644
--- a/src/config/var_definition.rs
+++ b/src/config/var_definition.rs
@@ -9,7 +9,6 @@ use crate::{
         ast_iterator::AstIterator,
         from_ast::{FromAst, FromAstElementContent},
     },
-    spanned,
     value::{AttrName, VarName},
 };
 
diff --git a/src/config/widget_definition.rs b/src/config/widget_definition.rs
index 7418a71..b7bf2d9 100644
--- a/src/config/widget_definition.rs
+++ b/src/config/widget_definition.rs
@@ -9,7 +9,6 @@ use crate::{
         ast_iterator::AstIterator,
         from_ast::{FromAst, FromAstElementContent},
     },
-    spanned,
     value::{AttrName, VarName},
 };
 
diff --git a/src/config/widget_use.rs b/src/config/widget_use.rs
index 6ce0332..78a6cfc 100644
--- a/src/config/widget_use.rs
+++ b/src/config/widget_use.rs
@@ -10,7 +10,6 @@ use crate::{
         ast_iterator::AstIterator,
         from_ast::FromAst,
     },
-    spanned,
     value::AttrName,
 };
 
@@ -27,29 +26,27 @@ pub struct WidgetUse {
 impl FromAst for WidgetUse {
     fn from_ast(e: Ast) -> AstResult<Self> {
         let span = e.span();
-        spanned!(e.span(), {
-            if let Ok(text) = e.as_literal_ref() {
-                Self {
-                    name: "text".to_string(),
-                    attrs: Attributes::new(
-                        span.into(),
-                        maplit::hashmap! {
-                            AttrName("text".to_string()) => AttrEntry::new(
-                                span.into(),
-                                Ast::Literal(span.into(), text.clone())
-                            )
-                        },
-                    ),
-                    children: Vec::new(),
-                    span,
-                }
-            } else {
-                let mut iter = e.try_ast_iter()?;
-                let (_, name) = iter.expect_symbol()?;
-                let attrs = iter.expect_key_values()?;
-                let children = iter.map(WidgetUse::from_ast).collect::<AstResult<Vec<_>>>()?;
-                Self { name, attrs, children, span }
-            }
-        })
+        if let Ok(text) = e.as_literal_ref() {
+            Ok(Self {
+                name: "text".to_string(),
+                attrs: Attributes::new(
+                    span.into(),
+                    maplit::hashmap! {
+                        AttrName("text".to_string()) => AttrEntry::new(
+                            span.into(),
+                            Ast::Literal(span.into(), text.clone())
+                        )
+                    },
+                ),
+                children: Vec::new(),
+                span,
+            })
+        } else {
+            let mut iter = e.try_ast_iter()?;
+            let (_, name) = iter.expect_symbol()?;
+            let attrs = iter.expect_key_values()?;
+            let children = iter.map(WidgetUse::from_ast).collect::<AstResult<Vec<_>>>()?;
+            Ok(Self { name, attrs, children, span })
+        }
     }
 }
diff --git a/src/config/window_definition.rs b/src/config/window_definition.rs
index 1ae9c99..f49f940 100644
--- a/src/config/window_definition.rs
+++ b/src/config/window_definition.rs
@@ -9,7 +9,6 @@ use crate::{
         ast_iterator::AstIterator,
         from_ast::{FromAst, FromAstElementContent},
     },
-    spanned,
     value::{AttrName, NumWithUnit, VarName},
 };
 
diff --git a/src/config/window_geometry.rs b/src/config/window_geometry.rs
index db9f93d..16aac88 100644
--- a/src/config/window_geometry.rs
+++ b/src/config/window_geometry.rs
@@ -5,7 +5,7 @@ use simplexpr::{dynval::DynVal, SimplExpr};
 use crate::{enum_parse, error::{AstError, AstResult}, parser::{
         ast::{Ast,  Span}, ast_iterator::AstIterator,
         from_ast::{FromAst, FromAstElementContent},
-    }, spanned, value::{AttrName, Coords, VarName}};
+    }, value::{AttrName, Coords, VarName}};
 
 use super::{widget_use::WidgetUse, window_definition::EnumParseError};
 use serde::{Serialize, Deserialize};
diff --git a/src/error.rs b/src/error.rs
index 53126f9..ac99e07 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -6,6 +6,7 @@ use crate::{
     },
 };
 use codespan_reporting::{diagnostic, files};
+use simplexpr::dynval;
 use thiserror::Error;
 
 pub type AstResult<T> = Result<T, AstError>;
@@ -13,15 +14,18 @@ pub type AstResult<T> = Result<T, AstError>;
 #[derive(Debug, Error)]
 pub enum AstError {
     #[error("Unknown toplevel declaration `{1}`")]
-    UnknownToplevel(Option<Span>, String),
+    UnknownToplevel(Span, String),
     #[error("Expected another element, but got nothing")]
-    MissingNode(Option<Span>),
+    MissingNode(Span),
     #[error("Wrong type of expression: Expected {1} but got {2}")]
-    WrongExprType(Option<Span>, AstType, AstType),
+    WrongExprType(Span, AstType, AstType),
     #[error("Expected to get a value, but got {1}")]
-    NotAValue(Option<Span>, AstType),
+    NotAValue(Span, AstType),
     #[error("Expected element {1}, but read {2}")]
-    MismatchedElementName(Option<Span>, String, String),
+    MismatchedElementName(Span, String, String),
+
+    #[error(transparent)]
+    ConversionError(#[from] dynval::ConversionError),
 
     #[error("{1}")]
     Other(Option<Span>, Box<dyn std::error::Error>),
@@ -29,13 +33,6 @@ pub enum AstError {
     #[error(transparent)]
     AttrError(#[from] AttrError),
 
-    //#[error("{msg}: {source}")]
-    // Context {
-    // span: Option<Span>,
-    //#[source]
-    // source: Box<dyn std::error::Error>,
-    // msg: String,
-    //},
     #[error(transparent)]
     ValidationError(#[from] ValidationError),
 
@@ -46,14 +43,14 @@ pub enum AstError {
 impl AstError {
     pub fn get_span(&self) -> Option<Span> {
         match self {
-            AstError::UnknownToplevel(span, _) => *span,
-            AstError::MissingNode(span) => *span,
-            AstError::WrongExprType(span, ..) => *span,
-            AstError::NotAValue(span, ..) => *span,
-            AstError::MismatchedElementName(span, ..) => *span,
+            AstError::UnknownToplevel(span, _) => Some(*span),
+            AstError::MissingNode(span) => Some(*span),
+            AstError::WrongExprType(span, ..) => Some(*span),
+            AstError::NotAValue(span, ..) => Some(*span),
+            AstError::MismatchedElementName(span, ..) => Some(*span),
             AstError::AttrError(err) => Some(err.span()),
             AstError::Other(span, ..) => *span,
-            // AstError::Context { span, .. } => *span,
+            AstError::ConversionError(err) => err.value.span().map(|x| x.into()),
             AstError::ValidationError(error) => None, // TODO none here is stupid
             AstError::ParseError { file_id, source } => file_id.and_then(|id| get_parse_error_span(id, source)),
         }
@@ -83,55 +80,25 @@ fn get_parse_error_span(
     }
 }
 
-pub fn spanned(span: Span, err: impl Into<AstError>) -> AstError {
-    use AstError::*;
-    match err.into() {
-        UnknownToplevel(None, x) => UnknownToplevel(Some(span), x),
-        MissingNode(None) => MissingNode(Some(span)),
-        WrongExprType(None, x, y) => WrongExprType(Some(span), x, y),
-        UnknownToplevel(None, x) => UnknownToplevel(Some(span), x),
-        MissingNode(None) => MissingNode(Some(span)),
-        NotAValue(None, x) => NotAValue(Some(span), x),
-        MismatchedElementName(None, x, y) => MismatchedElementName(Some(span), x, y),
-        // Context { span: None, source, msg } => Context { span: Some(span), source, msg },
-        Other(None, x) => Other(Some(span), x),
-        x => x,
-    }
-}
-
-pub trait OptionAstErrorExt<T> {
-    fn or_missing(self) -> Result<T, AstError>;
-}
-impl<T> OptionAstErrorExt<T> for Option<T> {
-    fn or_missing(self) -> Result<T, AstError> {
-        self.ok_or(AstError::MissingNode(None))
-    }
-}
-
-pub trait AstResultExt<T> {
-    fn at(self, span: Span) -> Result<T, AstError>;
-}
-
-pub trait Context<T> {
-    fn context(self, span: Span, msg: String) -> Result<T, AstError>;
-}
-
-impl<T, E: Into<AstError>> AstResultExt<T> for Result<T, E> {
-    fn at(self, span: Span) -> Result<T, AstError> {
-        self.map_err(|err| spanned(span, err))
-    }
-}
-
-// impl<T, E: std::error::Error + 'static> Context<T> for Result<T, E> {
-// fn context(self, span: Span, msg: String) -> Result<T, AstError> {
-// self.map_err(|x| AstError::Context { msg, span: Some(span), source: Box::new(x) })
+// pub fn spanned(span: Span, err: impl Into<AstError>) -> AstError {
+// use AstError::*;
+// match err.into() {
+// UnknownToplevel(s, x) => UnknownToplevel(Some(s.unwrap_or(span)), x),
+// MissingNode(s) => MissingNode(Some(s.unwrap_or(span))),
+// WrongExprType(s, x, y) => WrongExprType(Some(s.unwrap_or(span)), x, y),
+// UnknownToplevel(s, x) => UnknownToplevel(Some(s.unwrap_or(span)), x),
+// MissingNode(s) => MissingNode(Some(s.unwrap_or(span))),
+// NotAValue(s, x) => NotAValue(Some(s.unwrap_or(span)), x),
+// MismatchedElementName(s, expected, got) => MismatchedElementName(Some(s.unwrap_or(span)), expected, got),
+// Other(s, x) => Other(Some(s.unwrap_or(span)), x),
+// x @ ConversionError(_) | x @ AttrError(_) | x @ ValidationError(_) | x @ ParseError { .. } => x,
 //}
 
-#[macro_export]
-macro_rules! spanned {
-    ($span:expr, $block:expr) => {{
-        let span = $span;
-        let result: Result<_, crate::error::AstError> = try { $block };
-        crate::error::AstResultExt::at(result, span)
-    }};
+pub trait OptionAstErrorExt<T> {
+    fn or_missing(self, span: Span) -> Result<T, AstError>;
+}
+impl<T> OptionAstErrorExt<T> for Option<T> {
+    fn or_missing(self, span: Span) -> Result<T, AstError> {
+        self.ok_or(AstError::MissingNode(span))
+    }
 }
diff --git a/src/format_diagnostic.rs b/src/format_diagnostic.rs
index 6ad8f8f..a1238c3 100644
--- a/src/format_diagnostic.rs
+++ b/src/format_diagnostic.rs
@@ -14,7 +14,7 @@ macro_rules! gen_diagnostic {
         $(, note = $note:expr)? $(,)?
     ) => {
         Diagnostic::error()
-            $(.with_message($msg))?
+            $(.with_message($msg.to_string()))?
             $(.with_labels(vec![
                 Label::primary($span.2, $span.0..$span.1)
                     $(.with_message($label))?
@@ -23,7 +23,7 @@ macro_rules! gen_diagnostic {
     };
     ($msg:expr $(, $span:expr $(,)?)?) => {{
         Diagnostic::error()
-            .with_message($msg)
+            .with_message($msg.to_string())
             $(.with_labels(vec![Label::primary($span.2, $span.0..$span.1)]))?
     }};
 }
@@ -64,7 +64,7 @@ impl ToDiagnostic for AstError {
                     note = format!("Expected: {}\nGot: {}", expected, actual),
                 },
                 AstError::NotAValue(_, actual) => gen_diagnostic! {
-                    msg = format!("Expected value, but got {}", actual),
+                    msg = format!("Expected value, but got `{}`", actual),
                     label = span => "Expected some value here",
                     note = format!("Got: {}", actual),
                 },
@@ -73,7 +73,15 @@ impl ToDiagnostic for AstError {
                     parse_error::ParseError::SimplExpr(_, error) => simplexpr_error_to_diagnostic(error, span),
                     parse_error::ParseError::LexicalError(_) => lexical_error_to_diagnostic(span),
                 }),
-                _ => panic!(),
+                AstError::MismatchedElementName(_, expected, got) => gen_diagnostic! {
+                    msg = format!("Expected element `{}`, but found `{}`", expected, got),
+                    label = span => format!("Expected `{}` here", expected),
+                    note = format!("Expected: {}\nGot: {}", expected, got),
+                },
+                AstError::ConversionError(err) => conversion_error_to_diagnostic(err, span),
+                AstError::Other(_, source) => gen_diagnostic!(source, span),
+                AstError::AttrError(source) => gen_diagnostic!(source, span),
+                AstError::ValidationError(_) => todo!(),
             }
         } else {
             Diagnostic::error().with_message(format!("{}", self))
@@ -107,9 +115,9 @@ fn simplexpr_error_to_diagnostic(error: &simplexpr::error::Error, span: Span) ->
     match error {
         ParseError { source, .. } => lalrpop_error_to_diagnostic(source, span, move |error| lexical_error_to_diagnostic(span)),
         ConversionError(error) => conversion_error_to_diagnostic(error, span),
-        Eval(error) => gen_diagnostic!(format!("{}", error), span),
-        Other(error) => gen_diagnostic!(format!("{}", error), span),
-        Spanned(_, error) => gen_diagnostic!(format!("{}", error), span),
+        Eval(error) => gen_diagnostic!(error, span),
+        Other(error) => gen_diagnostic!(error, span),
+        Spanned(_, error) => gen_diagnostic!(error, span),
     }
 }
 
diff --git a/src/parser/ast.rs b/src/parser/ast.rs
index eb0b45a..24a6abc 100644
--- a/src/parser/ast.rs
+++ b/src/parser/ast.rs
@@ -92,14 +92,14 @@ macro_rules! as_func {
         pub fn $name(self) -> Result<$t, AstError> {
             match self {
                 $p => Ok($value),
-                x => Err(AstError::WrongExprType(Some(x.span()), $exprtype, x.expr_type())),
+                x => Err(AstError::WrongExprType(x.span(), $exprtype, x.expr_type())),
             }
         }
 
         pub fn $nameref(&self) -> Result<&$t, AstError> {
             match self {
                 $p => Ok($value),
-                x => Err(AstError::WrongExprType(Some(x.span()), $exprtype, x.expr_type())),
+                x => Err(AstError::WrongExprType(x.span(), $exprtype, x.expr_type())),
             }
         }
     };
@@ -145,7 +145,7 @@ impl Ast {
             // Ast::Symbol(_, _) => todo!(),
             Ast::Literal(span, x) => Ok(SimplExpr::Literal(span.into(), x)),
             Ast::SimplExpr(span, x) => Ok(x),
-            _ => Err(AstError::WrongExprType(Some(self.span()), AstType::IntoPrimitive, self.expr_type())),
+            _ => Err(AstError::WrongExprType(self.span(), AstType::IntoPrimitive, self.expr_type())),
         }
     }
 
diff --git a/src/parser/ast_iterator.rs b/src/parser/ast_iterator.rs
index 097e330..6f841d0 100644
--- a/src/parser/ast_iterator.rs
+++ b/src/parser/ast_iterator.rs
@@ -23,19 +23,18 @@ macro_rules! return_or_put_back {
     ($name:ident, $expr_type:expr, $t:ty = $p:pat => $ret:expr) => {
         pub fn $name(&mut self) -> AstResult<$t> {
             let expr_type = $expr_type;
-            match self.next() {
-                Some($p) => {
+            match self.expect_any()? {
+                $p => {
                     let (span, value) = $ret;
                     self.remaining_span.1 = span.1;
                     Ok((span, value))
                 }
-                Some(other) => {
+                other => {
                     let span = other.span();
                     let actual_type = other.expr_type();
                     self.iter.put_back(other);
-                    Err(AstError::WrongExprType(Some(span), expr_type, actual_type))
+                    Err(AstError::WrongExprType(span, expr_type, actual_type))
                 }
-                None => Err(AstError::MissingNode(None)),
             }
         }
     };
@@ -55,7 +54,7 @@ impl<I: Iterator<Item = Ast>> AstIterator<I> {
     }
 
     pub fn expect_any<T: FromAst>(&mut self) -> AstResult<T> {
-        self.iter.next().or_missing().and_then(T::from_ast)
+        self.iter.next().or_missing(self.remaining_span.with_length(0)).and_then(T::from_ast)
     }
 
     pub fn expect_key_values(&mut self) -> AstResult<Attributes> {
diff --git a/src/parser/from_ast.rs b/src/parser/from_ast.rs
index ed495d8..bca20b4 100644
--- a/src/parser/from_ast.rs
+++ b/src/parser/from_ast.rs
@@ -2,7 +2,7 @@ use super::{
     ast::{Ast, AstType, Span},
     ast_iterator::AstIterator,
 };
-use crate::{error::*, parser, spanned, util, value::AttrName};
+use crate::{error::*, parser, util, value::AttrName};
 use itertools::Itertools;
 use simplexpr::{ast::SimplExpr, dynval::DynVal};
 use std::{
@@ -37,14 +37,12 @@ pub trait FromAstElementContent: Sized {
 impl<T: FromAstElementContent> FromAst for T {
     fn from_ast(e: Ast) -> AstResult<Self> {
         let span = e.span();
-        spanned!(e.span(), {
-            let mut iter = e.try_ast_iter()?;
-            let (_, element_name) = iter.expect_symbol()?;
-            if Self::get_element_name() != element_name {
-                return Err(AstError::MismatchedElementName(Some(span), Self::get_element_name().to_string(), element_name));
-            }
-            Self::from_tail(span, iter)?
-        })
+        let mut iter = e.try_ast_iter()?;
+        let (_, element_name) = iter.expect_symbol()?;
+        if Self::get_element_name() != element_name {
+            return Err(AstError::MismatchedElementName(span, Self::get_element_name().to_string(), element_name));
+        }
+        Self::from_tail(span, iter)
     }
 }
 
@@ -54,7 +52,7 @@ impl FromAst for SimplExpr {
             Ast::Symbol(span, x) => Ok(SimplExpr::VarRef(span.into(), x)),
             Ast::Literal(span, x) => Ok(SimplExpr::Literal(span.into(), x)),
             Ast::SimplExpr(span, x) => Ok(x),
-            _ => Err(AstError::NotAValue(Some(e.span()), e.expr_type())),
+            _ => Err(AstError::NotAValue(e.span(), e.expr_type())),
         }
     }
 }
diff --git a/src/util.rs b/src/util.rs
index a15474f..e69de29 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1,14 +0,0 @@
-pub fn parse_duration(s: &str) -> anyhow::Result<std::time::Duration> {
-    use std::time::Duration;
-    if s.ends_with("ms") {
-        Ok(Duration::from_millis(s.trim_end_matches("ms").parse()?))
-    } else if s.ends_with('s') {
-        Ok(Duration::from_secs(s.trim_end_matches('s').parse()?))
-    } else if s.ends_with('m') {
-        Ok(Duration::from_secs(s.trim_end_matches('m').parse::<u64>()? * 60))
-    } else if s.ends_with('h') {
-        Ok(Duration::from_secs(s.trim_end_matches('h').parse::<u64>()? * 60 * 60))
-    } else {
-        Err(anyhow::anyhow!("Failed to parse duration `{}`", s))
-    }
-}