works!

src/config.rs

@@ -9,9 +9,17 @@ use openidconnect::{
     ClientId, ClientSecret, IssuerUrl, RedirectUrl, Scope,
 };
 use serde::{Deserialize, Serialize};
+use std::num::NonZeroU16;
+
+pub fn default_db_thread_channel_capacity() -> NonZeroU16 {
+    NonZeroU16::new(10).unwrap()
+}
 
 #[derive(Deserialize, Serialize, Debug, Clone)]
 pub struct Config {
+    pub sqlite_db: String,
+    #[serde(default = "default_db_thread_channel_capacity")]
+    pub db_thread_channel_capacity: NonZeroU16,
     pub oidc: IndexMap<String, OIDCProvider>,
 }
 
@@ -27,6 +35,7 @@ impl ValueParserFactory for Config {
 }
 
 impl Config {
+    #[allow(dead_code)]
     pub const EXAMPLE: &'static str =
         include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/config.toml.sample"));
     pub fn load_str(input: &str, path: impl ToString) -> eyre::Result<Config> {
@@ -35,7 +44,7 @@ impl Config {
 
     pub fn load(input: CachedInput) -> eyre::Result<Config> {
         let s = std::str::from_utf8(input.get_data()).wrap_err_with(|| input.path().to_string())?;
-        toml::from_str(s).wrap_err_with(|| input.path().to_string())
+        Self::load_str(s, input.path())
     }
 
     pub async fn resolve(&mut self) -> eyre::Result<()> {