diff --git a/dashboard/Cargo.nix b/dashboard/Cargo.nix
index 2e2bac7..3f5db58 100644
--- a/dashboard/Cargo.nix
+++ b/dashboard/Cargo.nix
@@ -131,31 +131,6 @@ rec {
           "rustc-dep-of-std" = [ "core" "compiler_builtins" ];
         };
       };
-      "aho-corasick" = rec {
-        crateName = "aho-corasick";
-        version = "1.0.2";
-        edition = "2021";
-        sha256 = "0has59a3571irggpk5z8c0lpnx8kdx12qf4g2x0560i2y8dwpxj3";
-        libName = "aho_corasick";
-        authors = [
-          "Andrew Gallant <jamslam@gmail.com>"
-        ];
-        dependencies = [
-          {
-            name = "memchr";
-            packageId = "memchr";
-            optional = true;
-            usesDefaultFeatures = false;
-          }
-        ];
-        features = {
-          "default" = [ "std" "perf-literal" ];
-          "logging" = [ "dep:log" ];
-          "perf-literal" = [ "dep:memchr" ];
-          "std" = [ "memchr?/std" ];
-        };
-        resolvedDefaultFeatures = [ "default" "perf-literal" "std" ];
-      };
       "android-tzdata" = rec {
         crateName = "android-tzdata";
         version = "0.1.1";
@@ -470,76 +445,6 @@ rec {
         };
         resolvedDefaultFeatures = [ "clock" "default" "iana-time-zone" "js-sys" "oldtime" "serde" "std" "time" "wasm-bindgen" "wasmbind" "winapi" ];
       };
-      "chrono-tz" = rec {
-        crateName = "chrono-tz";
-        version = "0.6.3";
-        edition = "2015";
-        sha256 = "1pmv434fhw9pwiqc12pvgaiskrq4v1dh1f238gfsg48r301r5hr9";
-        dependencies = [
-          {
-            name = "chrono";
-            packageId = "chrono";
-            usesDefaultFeatures = false;
-          }
-          {
-            name = "phf";
-            packageId = "phf";
-            usesDefaultFeatures = false;
-            features = [ "uncased" ];
-          }
-        ];
-        buildDependencies = [
-          {
-            name = "chrono-tz-build";
-            packageId = "chrono-tz-build";
-          }
-        ];
-        devDependencies = [
-          {
-            name = "chrono";
-            packageId = "chrono";
-            usesDefaultFeatures = false;
-            features = [ "alloc" ];
-          }
-        ];
-        features = {
-          "case-insensitive" = [ "uncased" "chrono-tz-build/case-insensitive" ];
-          "default" = [ "std" ];
-          "filter-by-regex" = [ "chrono-tz-build/filter-by-regex" ];
-          "serde" = [ "dep:serde" ];
-          "uncased" = [ "dep:uncased" ];
-        };
-        resolvedDefaultFeatures = [ "default" "std" ];
-      };
-      "chrono-tz-build" = rec {
-        crateName = "chrono-tz-build";
-        version = "0.0.3";
-        edition = "2018";
-        sha256 = "031s51dd2vbxdhz7fxk1jpbbvr800w57an14bsq3fd5khwx9ql3g";
-        dependencies = [
-          {
-            name = "parse-zoneinfo";
-            packageId = "parse-zoneinfo";
-          }
-          {
-            name = "phf";
-            packageId = "phf";
-            usesDefaultFeatures = false;
-            features = [ "uncased" ];
-          }
-          {
-            name = "phf_codegen";
-            packageId = "phf_codegen";
-            usesDefaultFeatures = false;
-          }
-        ];
-        features = {
-          "case-insensitive" = [ "uncased" ];
-          "filter-by-regex" = [ "regex" ];
-          "regex" = [ "dep:regex" ];
-          "uncased" = [ "dep:uncased" ];
-        };
-      };
       "core-foundation" = rec {
         crateName = "core-foundation";
         version = "0.9.3";
@@ -644,10 +549,6 @@ rec {
             packageId = "chrono";
             features = [ "serde" ];
           }
-          {
-            name = "chrono-tz";
-            packageId = "chrono-tz";
-          }
           {
             name = "fluent";
             packageId = "fluent";
@@ -2769,24 +2670,6 @@ rec {
           "thread-id" = [ "dep:thread-id" ];
         };
       };
-      "parse-zoneinfo" = rec {
-        crateName = "parse-zoneinfo";
-        version = "0.3.0";
-        edition = "2015";
-        sha256 = "0h8g6jy4kckn2gk8sd5adaws180n1ip65xhzw5jxlq4w8ibg41f7";
-        authors = [
-          "Djzin <djzin@users.noreply.github.com>"
-        ];
-        dependencies = [
-          {
-            name = "regex";
-            packageId = "regex";
-            usesDefaultFeatures = false;
-            features = [ "std" "unicode-perl" ];
-          }
-        ];
-
-      };
       "percent-encoding" = rec {
         crateName = "percent-encoding";
         version = "2.3.0";
@@ -2801,105 +2684,6 @@ rec {
         };
         resolvedDefaultFeatures = [ "alloc" "default" "std" ];
       };
-      "phf" = rec {
-        crateName = "phf";
-        version = "0.11.2";
-        edition = "2021";
-        sha256 = "1p03rsw66l7naqhpgr1a34r9yzi1gv9jh16g3fsk6wrwyfwdiqmd";
-        authors = [
-          "Steven Fackler <sfackler@gmail.com>"
-        ];
-        dependencies = [
-          {
-            name = "phf_shared";
-            packageId = "phf_shared";
-            usesDefaultFeatures = false;
-          }
-        ];
-        features = {
-          "default" = [ "std" ];
-          "macros" = [ "phf_macros" ];
-          "phf_macros" = [ "dep:phf_macros" ];
-          "serde" = [ "dep:serde" ];
-          "std" = [ "phf_shared/std" ];
-          "uncased" = [ "phf_shared/uncased" ];
-          "unicase" = [ "phf_macros?/unicase" "phf_shared/unicase" ];
-        };
-        resolvedDefaultFeatures = [ "uncased" ];
-      };
-      "phf_codegen" = rec {
-        crateName = "phf_codegen";
-        version = "0.11.2";
-        edition = "2021";
-        sha256 = "0nia6h4qfwaypvfch3pnq1nd2qj64dif4a6kai3b7rjrsf49dlz8";
-        authors = [
-          "Steven Fackler <sfackler@gmail.com>"
-        ];
-        dependencies = [
-          {
-            name = "phf_generator";
-            packageId = "phf_generator";
-          }
-          {
-            name = "phf_shared";
-            packageId = "phf_shared";
-          }
-        ];
-
-      };
-      "phf_generator" = rec {
-        crateName = "phf_generator";
-        version = "0.11.2";
-        edition = "2021";
-        crateBin = [];
-        sha256 = "1c14pjyxbcpwkdgw109f7581cc5fa3fnkzdq1ikvx7mdq9jcrr28";
-        authors = [
-          "Steven Fackler <sfackler@gmail.com>"
-        ];
-        dependencies = [
-          {
-            name = "phf_shared";
-            packageId = "phf_shared";
-            usesDefaultFeatures = false;
-          }
-          {
-            name = "rand";
-            packageId = "rand";
-            usesDefaultFeatures = false;
-            features = [ "small_rng" ];
-          }
-        ];
-        features = {
-          "criterion" = [ "dep:criterion" ];
-        };
-      };
-      "phf_shared" = rec {
-        crateName = "phf_shared";
-        version = "0.11.2";
-        edition = "2021";
-        sha256 = "0azphb0a330ypqx3qvyffal5saqnks0xvl8rj73jlk3qxxgbkz4h";
-        authors = [
-          "Steven Fackler <sfackler@gmail.com>"
-        ];
-        dependencies = [
-          {
-            name = "siphasher";
-            packageId = "siphasher";
-          }
-          {
-            name = "uncased";
-            packageId = "uncased";
-            optional = true;
-            usesDefaultFeatures = false;
-          }
-        ];
-        features = {
-          "default" = [ "std" ];
-          "uncased" = [ "dep:uncased" ];
-          "unicase" = [ "dep:unicase" ];
-        };
-        resolvedDefaultFeatures = [ "default" "std" "uncased" ];
-      };
       "pin-project" = rec {
         crateName = "pin-project";
         version = "1.1.2";
@@ -3059,7 +2843,7 @@ rec {
           "std" = [ "rand_core/std" "rand_chacha/std" "alloc" "getrandom" "libc" ];
           "std_rng" = [ "rand_chacha" ];
         };
-        resolvedDefaultFeatures = [ "alloc" "default" "getrandom" "libc" "rand_chacha" "small_rng" "std" "std_rng" ];
+        resolvedDefaultFeatures = [ "alloc" "default" "getrandom" "libc" "rand_chacha" "std" "std_rng" ];
       };
       "rand_chacha" = rec {
         crateName = "rand_chacha";
@@ -3135,138 +2919,6 @@ rec {
           "rustc-dep-of-std" = [ "core" "bitflags/rustc-dep-of-std" ];
         };
       };
-      "regex" = rec {
-        crateName = "regex";
-        version = "1.9.1";
-        edition = "2021";
-        sha256 = "0xdmrvs8fy7yw2bdk76mjbhzqibms7g4ljg468jwzxr0qa7ydsmj";
-        authors = [
-          "The Rust Project Developers"
-          "Andrew Gallant <jamslam@gmail.com>"
-        ];
-        dependencies = [
-          {
-            name = "aho-corasick";
-            packageId = "aho-corasick";
-            optional = true;
-          }
-          {
-            name = "memchr";
-            packageId = "memchr";
-            optional = true;
-          }
-          {
-            name = "regex-automata";
-            packageId = "regex-automata";
-            usesDefaultFeatures = false;
-            features = [ "alloc" "syntax" "meta" "nfa-pikevm" ];
-          }
-          {
-            name = "regex-syntax";
-            packageId = "regex-syntax";
-            usesDefaultFeatures = false;
-          }
-        ];
-        features = {
-          "default" = [ "std" "perf" "unicode" "regex-syntax/default" ];
-          "logging" = [ "aho-corasick?/logging" "regex-automata/logging" ];
-          "perf" = [ "perf-cache" "perf-dfa" "perf-onepass" "perf-backtrack" "perf-inline" "perf-literal" ];
-          "perf-backtrack" = [ "regex-automata/nfa-backtrack" ];
-          "perf-dfa" = [ "regex-automata/hybrid" ];
-          "perf-dfa-full" = [ "regex-automata/dfa-build" "regex-automata/dfa-search" ];
-          "perf-inline" = [ "regex-automata/perf-inline" ];
-          "perf-literal" = [ "dep:aho-corasick" "dep:memchr" "regex-automata/perf-literal" ];
-          "perf-onepass" = [ "regex-automata/dfa-onepass" ];
-          "std" = [ "aho-corasick?/std" "memchr?/std" "regex-automata/std" "regex-syntax/std" ];
-          "unicode" = [ "unicode-age" "unicode-bool" "unicode-case" "unicode-gencat" "unicode-perl" "unicode-script" "unicode-segment" "regex-automata/unicode" "regex-syntax/unicode" ];
-          "unicode-age" = [ "regex-automata/unicode-age" "regex-syntax/unicode-age" ];
-          "unicode-bool" = [ "regex-automata/unicode-bool" "regex-syntax/unicode-bool" ];
-          "unicode-case" = [ "regex-automata/unicode-case" "regex-syntax/unicode-case" ];
-          "unicode-gencat" = [ "regex-automata/unicode-gencat" "regex-syntax/unicode-gencat" ];
-          "unicode-perl" = [ "regex-automata/unicode-perl" "regex-automata/unicode-word-boundary" "regex-syntax/unicode-perl" ];
-          "unicode-script" = [ "regex-automata/unicode-script" "regex-syntax/unicode-script" ];
-          "unicode-segment" = [ "regex-automata/unicode-segment" "regex-syntax/unicode-segment" ];
-          "unstable" = [ "pattern" ];
-          "use_std" = [ "std" ];
-        };
-        resolvedDefaultFeatures = [ "std" "unicode-perl" ];
-      };
-      "regex-automata" = rec {
-        crateName = "regex-automata";
-        version = "0.3.3";
-        edition = "2021";
-        sha256 = "041kj8fnyh3hv8sqmqq1am6agb1ckjxj6swjfcp8qih7vl84qd9r";
-        authors = [
-          "The Rust Project Developers"
-          "Andrew Gallant <jamslam@gmail.com>"
-        ];
-        dependencies = [
-          {
-            name = "aho-corasick";
-            packageId = "aho-corasick";
-            optional = true;
-            usesDefaultFeatures = false;
-          }
-          {
-            name = "memchr";
-            packageId = "memchr";
-            optional = true;
-            usesDefaultFeatures = false;
-          }
-          {
-            name = "regex-syntax";
-            packageId = "regex-syntax";
-            optional = true;
-            usesDefaultFeatures = false;
-          }
-        ];
-        features = {
-          "default" = [ "std" "syntax" "perf" "unicode" "meta" "nfa" "dfa" "hybrid" ];
-          "dfa" = [ "dfa-build" "dfa-search" "dfa-onepass" ];
-          "dfa-build" = [ "nfa-thompson" "dfa-search" ];
-          "dfa-onepass" = [ "nfa-thompson" ];
-          "hybrid" = [ "alloc" "nfa-thompson" ];
-          "internal-instrument" = [ "internal-instrument-pikevm" ];
-          "internal-instrument-pikevm" = [ "logging" "std" ];
-          "logging" = [ "dep:log" "aho-corasick?/logging" ];
-          "meta" = [ "syntax" "nfa-pikevm" ];
-          "nfa" = [ "nfa-thompson" "nfa-pikevm" "nfa-backtrack" ];
-          "nfa-backtrack" = [ "nfa-thompson" ];
-          "nfa-pikevm" = [ "nfa-thompson" ];
-          "nfa-thompson" = [ "alloc" ];
-          "perf" = [ "perf-inline" "perf-literal" ];
-          "perf-literal" = [ "perf-literal-substring" "perf-literal-multisubstring" ];
-          "perf-literal-multisubstring" = [ "std" "dep:aho-corasick" ];
-          "perf-literal-substring" = [ "aho-corasick?/perf-literal" "dep:memchr" ];
-          "std" = [ "regex-syntax?/std" "memchr?/std" "aho-corasick?/std" "alloc" ];
-          "syntax" = [ "dep:regex-syntax" "alloc" ];
-          "unicode" = [ "unicode-age" "unicode-bool" "unicode-case" "unicode-gencat" "unicode-perl" "unicode-script" "unicode-segment" "unicode-word-boundary" "regex-syntax?/unicode" ];
-          "unicode-age" = [ "regex-syntax?/unicode-age" ];
-          "unicode-bool" = [ "regex-syntax?/unicode-bool" ];
-          "unicode-case" = [ "regex-syntax?/unicode-case" ];
-          "unicode-gencat" = [ "regex-syntax?/unicode-gencat" ];
-          "unicode-perl" = [ "regex-syntax?/unicode-perl" ];
-          "unicode-script" = [ "regex-syntax?/unicode-script" ];
-          "unicode-segment" = [ "regex-syntax?/unicode-segment" ];
-        };
-        resolvedDefaultFeatures = [ "alloc" "meta" "nfa-pikevm" "nfa-thompson" "std" "syntax" "unicode-perl" "unicode-word-boundary" ];
-      };
-      "regex-syntax" = rec {
-        crateName = "regex-syntax";
-        version = "0.7.4";
-        edition = "2021";
-        sha256 = "1qjczlc2w92kamn9ipjdr5pjql0jnccahpi9l3r6wp0rnsjr5sp5";
-        authors = [
-          "The Rust Project Developers"
-          "Andrew Gallant <jamslam@gmail.com>"
-        ];
-        features = {
-          "arbitrary" = [ "dep:arbitrary" ];
-          "default" = [ "std" "unicode" ];
-          "unicode" = [ "unicode-age" "unicode-bool" "unicode-case" "unicode-gencat" "unicode-perl" "unicode-script" "unicode-segment" ];
-        };
-        resolvedDefaultFeatures = [ "std" "unicode-perl" ];
-      };
       "reqwest" = rec {
         crateName = "reqwest";
         version = "0.11.18";
@@ -3983,22 +3635,6 @@ rec {
         ];
 
       };
-      "siphasher" = rec {
-        crateName = "siphasher";
-        version = "0.3.10";
-        edition = "2018";
-        sha256 = "1pi5sb2j2wi92zfqj6qxnk11vk1qq2plya5g2a5kzbwrd0hf7lvv";
-        authors = [
-          "Frank Denis <github@pureftpd.org>"
-        ];
-        features = {
-          "default" = [ "std" ];
-          "serde" = [ "dep:serde" ];
-          "serde_no_std" = [ "serde/alloc" ];
-          "serde_std" = [ "std" "serde/std" ];
-        };
-        resolvedDefaultFeatures = [ "default" "std" ];
-      };
       "slab" = rec {
         crateName = "slab";
         version = "0.4.8";
@@ -4839,27 +4475,6 @@ rec {
           "scale_info" = [ "scale-info/derive" ];
         };
       };
-      "uncased" = rec {
-        crateName = "uncased";
-        version = "0.9.9";
-        edition = "2018";
-        sha256 = "0s6ajpdc300jr3fhxgh93lwdfkd88g9amhw6mc179gm4d0qwb6wv";
-        authors = [
-          "Sergio Benitez <sb@sergio.bz>"
-        ];
-        buildDependencies = [
-          {
-            name = "version_check";
-            packageId = "version_check";
-          }
-        ];
-        features = {
-          "default" = [ "alloc" ];
-          "serde" = [ "dep:serde" ];
-          "with-serde" = [ "serde" ];
-          "with-serde-alloc" = [ "serde" "serde/alloc" "alloc" ];
-        };
-      };
       "unic-langid" = rec {
         crateName = "unic-langid";
         version = "0.9.1";
diff --git a/ifc/src/lib.rs b/ifc/src/lib.rs
index 5ede3e5..5d6d6a3 100644
--- a/ifc/src/lib.rs
+++ b/ifc/src/lib.rs
@@ -458,51 +458,33 @@ mod tests {
 
     #[test]
     fn it_expresses_day_of_week() {
+        assert_eq!(IFC::leap_day(12020).unwrap().weekday(), DayOfWeek::LeapDay);
+        assert_eq!(IFC::year_day(12022).weekday(), DayOfWeek::YearDay);
+        assert_eq!(IFC::ymd(12022, 1, 1).unwrap().weekday(), DayOfWeek::Sunday);
+        assert_eq!(IFC::ymd(12022, 1, 2).unwrap().weekday(), DayOfWeek::Monday);
+        assert_eq!(IFC::ymd(12022, 1, 3).unwrap().weekday(), DayOfWeek::Tuesday);
         assert_eq!(
-            IFC::leap_day(12020).unwrap().weekday_ifc(),
-            DayOfWeek::LeapDay
-        );
-        assert_eq!(IFC::year_day(12022).weekday_ifc(), DayOfWeek::YearDay);
-        assert_eq!(
-            IFC::ymd(12022, 1, 1).unwrap().weekday_ifc(),
-            DayOfWeek::Sunday
-        );
-        assert_eq!(
-            IFC::ymd(12022, 1, 2).unwrap().weekday_ifc(),
-            DayOfWeek::Monday
-        );
-        assert_eq!(
-            IFC::ymd(12022, 1, 3).unwrap().weekday_ifc(),
-            DayOfWeek::Tuesday
-        );
-        assert_eq!(
-            IFC::ymd(12022, 1, 4).unwrap().weekday_ifc(),
+            IFC::ymd(12022, 1, 4).unwrap().weekday(),
             DayOfWeek::Wednesday
         );
         assert_eq!(
-            IFC::ymd(12022, 1, 5).unwrap().weekday_ifc(),
+            IFC::ymd(12022, 1, 5).unwrap().weekday(),
             DayOfWeek::Thursday
         );
+        assert_eq!(IFC::ymd(12022, 1, 6).unwrap().weekday(), DayOfWeek::Friday);
         assert_eq!(
-            IFC::ymd(12022, 1, 6).unwrap().weekday_ifc(),
-            DayOfWeek::Friday
-        );
-        assert_eq!(
-            IFC::ymd(12022, 1, 7).unwrap().weekday_ifc(),
+            IFC::ymd(12022, 1, 7).unwrap().weekday(),
             DayOfWeek::Saturday
         );
-        assert_eq!(
-            IFC::ymd(12022, 1, 8).unwrap().weekday_ifc(),
-            DayOfWeek::Sunday
-        );
+        assert_eq!(IFC::ymd(12022, 1, 8).unwrap().weekday(), DayOfWeek::Sunday);
     }
 
     #[test]
     fn it_expresses_month() {
-        assert_eq!(IFC::ymd(12022, 1, 4).unwrap().month_ifc(), Month::January);
-        assert_eq!(IFC::ymd(12022, 12, 1).unwrap().month_ifc(), Month::November);
-        assert_eq!(IFC::leap_day(12020).unwrap().month_ifc(), Month::June);
-        assert_eq!(IFC::year_day(12020).month_ifc(), Month::December);
+        assert_eq!(IFC::ymd(12022, 1, 4).unwrap().month(), Month::January);
+        assert_eq!(IFC::ymd(12022, 12, 1).unwrap().month(), Month::November);
+        assert_eq!(IFC::leap_day(12020).unwrap().month(), Month::June);
+        assert_eq!(IFC::year_day(12020).month(), Month::December);
     }
 
     #[test]