diff --git a/Cargo.nix b/Cargo.nix
index 6e582a78..6455dc8b 100644
--- a/Cargo.nix
+++ b/Cargo.nix
@@ -430,7 +430,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
+      [ "alloc" ]
     ];
   });
   
@@ -458,7 +458,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
+      [ "alloc" ]
     ];
   });
   
@@ -869,15 +869,15 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "7c2538c4e68e52548bacb3e83ac549f903d44f011ac9d5abb5e132e67d0808f7"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "generic-array")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "rand_core")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "zeroize")
+      [ "generic-array" ]
+      [ "rand_core" ]
+      [ "zeroize" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "generic_array" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".generic-array."0.14.7" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "rand_core" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "subtle" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "zeroize" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
+      generic_array = rustPackages."registry+https://github.com/rust-lang/crates.io-index".generic-array."0.14.7" { inherit profileName; };
+      rand_core = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
+      subtle = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
+      zeroize = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
     };
   });
   
@@ -940,14 +940,14 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "82b10af9f9f9f2134a42d3f8aa74658660f2e0234b0eb81bd171df8aa32779ed"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "oid")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "std")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "zeroize")
+      [ "alloc" ]
+      [ "oid" ]
+      [ "std" ]
+      [ "zeroize" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "const_oid" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".const-oid."0.9.2" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "zeroize" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
+      const_oid = rustPackages."registry+https://github.com/rust-lang/crates.io-index".const-oid."0.9.2" { inherit profileName; };
+      zeroize = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
     };
   });
   
@@ -966,17 +966,17 @@ in
     features = builtins.concatLists [
       [ "alloc" ]
       [ "block-buffer" ]
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "const-oid")
+      [ "const-oid" ]
       [ "core-api" ]
       [ "default" ]
       [ "mac" ]
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "oid")
+      [ "oid" ]
       [ "std" ]
       [ "subtle" ]
     ];
     dependencies = {
       block_buffer = rustPackages."registry+https://github.com/rust-lang/crates.io-index".block-buffer."0.10.4" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "const_oid" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".const-oid."0.9.2" { inherit profileName; };
+      const_oid = rustPackages."registry+https://github.com/rust-lang/crates.io-index".const-oid."0.9.2" { inherit profileName; };
       crypto_common = rustPackages."registry+https://github.com/rust-lang/crates.io-index".crypto-common."0.1.6" { inherit profileName; };
       subtle = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
     };
@@ -1010,23 +1010,23 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "106401dadc137d05cb0d4ab4d42be089746aefdfe8992df4d0edcf351c16ddca"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "arithmetic")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "der")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "digest")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "hazmat")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "pkcs8")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "rfc6979")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "signing")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "std")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "verifying")
+      [ "alloc" ]
+      [ "arithmetic" ]
+      [ "der" ]
+      [ "digest" ]
+      [ "hazmat" ]
+      [ "pkcs8" ]
+      [ "rfc6979" ]
+      [ "signing" ]
+      [ "std" ]
+      [ "verifying" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "der" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".der."0.7.3" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "digest" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".digest."0.10.6" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "elliptic_curve" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".elliptic-curve."0.13.3" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "rfc6979" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rfc6979."0.4.0" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "signature" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".signature."2.1.0" { inherit profileName; };
+      der = rustPackages."registry+https://github.com/rust-lang/crates.io-index".der."0.7.3" { inherit profileName; };
+      digest = rustPackages."registry+https://github.com/rust-lang/crates.io-index".digest."0.10.6" { inherit profileName; };
+      elliptic_curve = rustPackages."registry+https://github.com/rust-lang/crates.io-index".elliptic-curve."0.13.3" { inherit profileName; };
+      rfc6979 = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rfc6979."0.4.0" { inherit profileName; };
+      signature = rustPackages."registry+https://github.com/rust-lang/crates.io-index".signature."2.1.0" { inherit profileName; };
     };
   });
   
@@ -1046,28 +1046,28 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "22cdacd4d6ed3f9b98680b679c0e52a823b8a2c7a97358d508fe247f2180c282"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "arithmetic")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "digest")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "ff")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "group")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "hazmat")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "pkcs8")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "sec1")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "std")
+      [ "alloc" ]
+      [ "arithmetic" ]
+      [ "digest" ]
+      [ "ff" ]
+      [ "group" ]
+      [ "hazmat" ]
+      [ "pkcs8" ]
+      [ "sec1" ]
+      [ "std" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "base16ct" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".base16ct."0.2.0" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "crypto_bigint" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".crypto-bigint."0.5.1" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "digest" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".digest."0.10.6" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "ff" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".ff."0.13.0" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "generic_array" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".generic-array."0.14.7" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "group" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".group."0.13.0" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "pkcs8" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".pkcs8."0.10.2" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "rand_core" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "sec1" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".sec1."0.7.1" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "subtle" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "zeroize" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
+      base16ct = rustPackages."registry+https://github.com/rust-lang/crates.io-index".base16ct."0.2.0" { inherit profileName; };
+      crypto_bigint = rustPackages."registry+https://github.com/rust-lang/crates.io-index".crypto-bigint."0.5.1" { inherit profileName; };
+      digest = rustPackages."registry+https://github.com/rust-lang/crates.io-index".digest."0.10.6" { inherit profileName; };
+      ff = rustPackages."registry+https://github.com/rust-lang/crates.io-index".ff."0.13.0" { inherit profileName; };
+      generic_array = rustPackages."registry+https://github.com/rust-lang/crates.io-index".generic-array."0.14.7" { inherit profileName; };
+      group = rustPackages."registry+https://github.com/rust-lang/crates.io-index".group."0.13.0" { inherit profileName; };
+      pkcs8 = rustPackages."registry+https://github.com/rust-lang/crates.io-index".pkcs8."0.10.2" { inherit profileName; };
+      rand_core = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
+      sec1 = rustPackages."registry+https://github.com/rust-lang/crates.io-index".sec1."0.7.1" { inherit profileName; };
+      subtle = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
+      zeroize = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
     };
   });
   
@@ -1126,11 +1126,11 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "ded41244b729663b1e574f1b4fb731469f69f79c17667b5d776b16cda0479449"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
+      [ "alloc" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "rand_core" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "subtle" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
+      rand_core = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
+      subtle = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
     };
   });
   
@@ -1378,11 +1378,11 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"; };
     features = builtins.concatLists [
       [ "more_lengths" ]
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "zeroize")
+      [ "zeroize" ]
     ];
     dependencies = {
       typenum = rustPackages."registry+https://github.com/rust-lang/crates.io-index".typenum."1.16.0" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "zeroize" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
+      zeroize = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
     };
     buildDependencies = {
       version_check = buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".version_check."0.9.4" { profileName = "__noProfile"; };
@@ -1439,12 +1439,12 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "f0f9ef7462f7c099f518d754361858f86d8a07af53ba9af0fe635bbccb151a63"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
+      [ "alloc" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "ff" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".ff."0.13.0" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "rand_core" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "subtle" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
+      ff = rustPackages."registry+https://github.com/rust-lang/crates.io-index".ff."0.13.0" { inherit profileName; };
+      rand_core = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
+      subtle = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
     };
   });
   
@@ -1821,28 +1821,28 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "955890845095ccf31ef83ad41a05aabb4d8cc23dc3cac5a9f5c89cf26dd0da75"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "arithmetic")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "default")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "digest")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "ecdsa")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "ecdsa-core")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "once_cell")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "pkcs8")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "precomputed-tables")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "schnorr")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "sha2")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "sha256")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "signature")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "std")
+      [ "alloc" ]
+      [ "arithmetic" ]
+      [ "default" ]
+      [ "digest" ]
+      [ "ecdsa" ]
+      [ "ecdsa-core" ]
+      [ "once_cell" ]
+      [ "pkcs8" ]
+      [ "precomputed-tables" ]
+      [ "schnorr" ]
+      [ "sha2" ]
+      [ "sha256" ]
+      [ "signature" ]
+      [ "std" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "cfg_if" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."1.0.0" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "ecdsa_core" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".ecdsa."0.16.4" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "elliptic_curve" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".elliptic-curve."0.13.3" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "once_cell" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".once_cell."1.17.1" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "sha2" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".sha2."0.10.6" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "signature" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".signature."2.1.0" { inherit profileName; };
+      cfg_if = rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."1.0.0" { inherit profileName; };
+      ecdsa_core = rustPackages."registry+https://github.com/rust-lang/crates.io-index".ecdsa."0.16.4" { inherit profileName; };
+      elliptic_curve = rustPackages."registry+https://github.com/rust-lang/crates.io-index".elliptic-curve."0.13.3" { inherit profileName; };
+      once_cell = rustPackages."registry+https://github.com/rust-lang/crates.io-index".once_cell."1.17.1" { inherit profileName; };
+      sha2 = rustPackages."registry+https://github.com/rust-lang/crates.io-index".sha2."0.10.6" { inherit profileName; };
+      signature = rustPackages."registry+https://github.com/rust-lang/crates.io-index".signature."2.1.0" { inherit profileName; };
     };
   });
   
@@ -2614,12 +2614,12 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "std")
+      [ "alloc" ]
+      [ "std" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "der" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".der."0.7.3" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "spki" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".spki."0.7.1" { inherit profileName; };
+      der = rustPackages."registry+https://github.com/rust-lang/crates.io-index".der."0.7.3" { inherit profileName; };
+      spki = rustPackages."registry+https://github.com/rust-lang/crates.io-index".spki."0.7.1" { inherit profileName; };
     };
   });
   
@@ -2987,8 +2987,8 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "f8dd2a808d456c4a54e300a23e9f5a67e122c3024119acbfd73e3bf664491cb2"; };
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "hmac" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".hmac."0.12.1" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "subtle" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
+      hmac = rustPackages."registry+https://github.com/rust-lang/crates.io-index".hmac."0.12.1" { inherit profileName; };
+      subtle = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
     };
   });
   
@@ -3087,21 +3087,21 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "48518a2b5775ba8ca5b46596aae011caa431e6ce7e4a67ead66d92f08884220e"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "default")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "der")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "point")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "std")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "subtle")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "zeroize")
+      [ "alloc" ]
+      [ "default" ]
+      [ "der" ]
+      [ "point" ]
+      [ "std" ]
+      [ "subtle" ]
+      [ "zeroize" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "base16ct" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".base16ct."0.2.0" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "der" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".der."0.7.3" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "generic_array" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".generic-array."0.14.7" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "pkcs8" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".pkcs8."0.10.2" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "subtle" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "zeroize" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
+      base16ct = rustPackages."registry+https://github.com/rust-lang/crates.io-index".base16ct."0.2.0" { inherit profileName; };
+      der = rustPackages."registry+https://github.com/rust-lang/crates.io-index".der."0.7.3" { inherit profileName; };
+      generic_array = rustPackages."registry+https://github.com/rust-lang/crates.io-index".generic-array."0.14.7" { inherit profileName; };
+      pkcs8 = rustPackages."registry+https://github.com/rust-lang/crates.io-index".pkcs8."0.10.2" { inherit profileName; };
+      subtle = rustPackages."registry+https://github.com/rust-lang/crates.io-index".subtle."2.4.1" { inherit profileName; };
+      zeroize = rustPackages."registry+https://github.com/rust-lang/crates.io-index".zeroize."1.6.0" { inherit profileName; };
     };
   });
   
@@ -3300,14 +3300,14 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "5e1788eed21689f9cf370582dfc467ef36ed9c707f073528ddafa8d83e3b8500"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "digest")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "rand_core")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "std")
+      [ "alloc" ]
+      [ "digest" ]
+      [ "rand_core" ]
+      [ "std" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "digest" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".digest."0.10.6" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "rand_core" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
+      digest = rustPackages."registry+https://github.com/rust-lang/crates.io-index".digest."0.10.6" { inherit profileName; };
+      rand_core = rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.4" { inherit profileName; };
     };
   });
   
@@ -3359,12 +3359,12 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "37a5be806ab6f127c3da44b7378837ebf01dadca8510a0e572460216b228bd0e"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "std")
+      [ "alloc" ]
+      [ "std" ]
     ];
     dependencies = {
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "base64ct" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".base64ct."1.6.0" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "der" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".der."0.7.3" { inherit profileName; };
+      base64ct = rustPackages."registry+https://github.com/rust-lang/crates.io-index".base64ct."1.6.0" { inherit profileName; };
+      der = rustPackages."registry+https://github.com/rust-lang/crates.io-index".der."0.7.3" { inherit profileName; };
     };
   });
   
@@ -3432,7 +3432,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "6bdef32e8150c2a081110b42772ffe7d7c9032b606bc226c8260fd97e0976601"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "i128")
+      [ "i128" ]
     ];
   });
   
@@ -3954,11 +3954,6 @@ in
     version = "1.0.4-alpha";
     registry = "unknown";
     src = fetchCrateLocal (workspaceSrc + "/crates/uplc");
-    features = builtins.concatLists [
-      [ "default" ]
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "native-secp256k1")
-      (lib.optional (rootFeatures' ? "uplc/unstable") "unstable")
-    ];
     dependencies = {
       anyhow = rustPackages."registry+https://github.com/rust-lang/crates.io-index".anyhow."1.0.70" { inherit profileName; };
       cryptoxide = rustPackages."registry+https://github.com/rust-lang/crates.io-index".cryptoxide."0.4.4" { inherit profileName; };
@@ -3966,7 +3961,7 @@ in
       hex = rustPackages."registry+https://github.com/rust-lang/crates.io-index".hex."0.4.3" { inherit profileName; };
       indexmap = rustPackages."registry+https://github.com/rust-lang/crates.io-index".indexmap."1.9.3" { inherit profileName; };
       itertools = rustPackages."registry+https://github.com/rust-lang/crates.io-index".itertools."0.10.5" { inherit profileName; };
-      ${ if rootFeatures' ? "uplc/native-secp256k1" then "k256" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".k256."0.13.0" { inherit profileName; };
+      ${ if false then "k256" else null } = rustPackages."registry+https://github.com/rust-lang/crates.io-index".k256."0.13.0" { inherit profileName; };
       miette = rustPackages."registry+https://github.com/rust-lang/crates.io-index".miette."5.7.0" { inherit profileName; };
       num_bigint = rustPackages."registry+https://github.com/rust-lang/crates.io-index".num-bigint."0.4.3" { inherit profileName; };
       num_integer = rustPackages."registry+https://github.com/rust-lang/crates.io-index".num-integer."0.1.45" { inherit profileName; };
@@ -4557,7 +4552,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "2a0956f1ba7c7909bfb66c2e9e4124ab6f6482560f6628b5aaeba39207c9aad9"; };
     features = builtins.concatLists [
-      (lib.optional (rootFeatures' ? "uplc/native-secp256k1") "alloc")
+      [ "alloc" ]
     ];
   });