add envconfig as a dependency

Cargo.lock

@@ -358,6 +358,26 @@ version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
 
+[[package]]
+name = "envconfig"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c1d02ec9fdd0a585580bdc8fb7ad01675eee5e3b7336cedbabe3aab4a026dbc"
+dependencies = [
+ "envconfig_derive",
+]
+
+[[package]]
+name = "envconfig_derive"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4291f0c7220b67ad15e9d5300ba2f215cee504f0924d60e77c9d1c77e7a69b1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -550,6 +570,7 @@ dependencies = [
  "diesel",
  "diesel-async",
  "dotenvy",
+ "envconfig",
  "teloxide",
  "tokio",
 ]

Cargo.toml

@@ -9,5 +9,6 @@ edition = "2021"
 diesel = { version = "2.2.8", features = ["postgres"] }
 diesel-async = { version = "0.5.2", features = ["postgres"] }
 dotenvy = "0.15.7"
+envconfig = "0.11.0"
 teloxide = { version = "0.14.0", features = ["macros"] }
 tokio = { version = "1.44.1", features = ["rt-multi-thread", "macros"] }