diff --git a/.gitignore b/.gitignore
index 1cdfff6..b58012b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,4 +24,5 @@ __pycache__/
 # Virtual env for sideload (macOS and Windows)
 ledger/
 # Build directory
-build/
\ No newline at end of file
+build/
+target-rust-analyzer/
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..deb5230
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,18 @@
+[submodule "deps/sapling-crypto"]
+	path = deps/sapling-crypto
+	url = https://github.com/zcash/sapling-crypto.git
+[submodule "deps/rust-secp256k1"]
+	path = deps/rust-secp256k1
+	url = https://github.com/rust-bitcoin/rust-secp256k1.git
+[submodule "deps/radium"]
+	path = deps/radium
+	url = https://github.com/ferrilab/radium.git
+[submodule "deps/orchard"]
+	path = deps/orchard
+	url = https://github.com/zcash/orchard.git
+[submodule "deps/librustzcash"]
+	path = deps/librustzcash
+	url = https://github.com/zcash/librustzcash.git
+[submodule "deps/spin"]
+	path = deps/spin
+	url = https://github.com/zesterer/spin-rs.git
diff --git a/Cargo.lock b/Cargo.lock
index 0f2d124..b01f86a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,6 +8,27 @@ version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
 
+[[package]]
+name = "aead"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d122413f284cf2d62fb1b7db97e02edb8cda96d769b16e443a4f6195e35662b0"
+dependencies = [
+ "crypto-common 0.1.6",
+ "generic-array",
+]
+
+[[package]]
+name = "aes"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b169f7a6d4742236a0a00c541b845991d0ac43e546831af1249753ab4c3aa3a0"
+dependencies = [
+ "cfg-if",
+ "cipher",
+ "cpufeatures",
+]
+
 [[package]]
 name = "aho-corasick"
 version = "1.1.3"
@@ -33,16 +54,22 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b0674a1ddeecb70197781e945de4b3b8ffb61fa939a5597bcf48503737663100"
 
 [[package]]
-name = "app-boilerplate-rust"
-version = "1.7.6"
+name = "app-zcash-rust"
+version = "0.0.1"
 dependencies = [
  "hex",
  "image 0.25.7",
  "include_gif",
  "ledger_device_sdk",
  "numtoa",
+ "orchard",
+ "sapling-crypto",
+ "secp256k1",
  "serde",
  "serde-json-core",
+ "zcash_address",
+ "zcash_primitives",
+ "zcash_transparent",
 ]
 
 [[package]]
@@ -62,6 +89,12 @@ dependencies = [
  "syn 2.0.98",
 ]
 
+[[package]]
+name = "arrayref"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76a2e8124351fda1ef8aaaa3bbd7ebbcb486bbcd4225aca0aa0d84bb2db8fecb"
+
 [[package]]
 name = "arrayvec"
 version = "0.7.6"
@@ -97,6 +130,12 @@ dependencies = [
  "arrayvec",
 ]
 
+[[package]]
+name = "bech32"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d965446196e3b7decd44aa7ee49e31d630118f90ef12f97900f262eb915c951d"
+
 [[package]]
 name = "bindgen"
 version = "0.65.1"
@@ -120,6 +159,22 @@ dependencies = [
  "which",
 ]
 
+[[package]]
+name = "bip32"
+version = "0.6.0-pre.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "143f5327f23168716be068f8e1014ba2ea16a6c91e8777bc8927da7b51e1df1f"
+dependencies = [
+ "bs58",
+ "hmac",
+ "rand_core",
+ "ripemd 0.2.0-pre.4",
+ "secp256k1",
+ "sha2 0.11.0-pre.4",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "bit_field"
 version = "0.10.2"
@@ -144,6 +199,89 @@ version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6099cdc01846bc367c4e7dd630dc5966dccf36b652fae7a74e17b640411a91b2"
 
+[[package]]
+name = "bitvec"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bc2832c24239b0141d5674bb9174f9d68a8b5b3f2753311927c172ca46f7e9c"
+dependencies = [
+ "funty",
+ "radium",
+ "tap",
+ "wyz",
+]
+
+[[package]]
+name = "blake2b_simd"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06e903a20b159e944f91ec8499fe1e55651480c541ea0a584f5d967c49ad9d99"
+dependencies = [
+ "arrayref",
+ "arrayvec",
+ "constant_time_eq",
+]
+
+[[package]]
+name = "blake2s_simd"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e90f7deecfac93095eb874a40febd69427776e24e1bd7f87f33ac62d6f0174df"
+dependencies = [
+ "arrayref",
+ "arrayvec",
+ "constant_time_eq",
+]
+
+[[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
+name = "block-buffer"
+version = "0.11.0-rc.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fd016a0ddc7cb13661bf5576073ce07330a693f8608a1320b4e20561cc12cdc"
+dependencies = [
+ "hybrid-array",
+]
+
+[[package]]
+name = "bls12_381"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7bc6d6292be3a19e6379786dac800f551e5865a5bb51ebbe3064ab80433f403"
+dependencies = [
+ "ff",
+ "group",
+ "rand_core",
+ "subtle",
+]
+
+[[package]]
+name = "bounded-vec"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09dc0086e469182132244e9b8d313a0742e1132da43a08c24b9dd3c18e0faf3a"
+dependencies = [
+ "thiserror 2.0.17",
+]
+
+[[package]]
+name = "bs58"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf88ba1141d185c399bee5288d850d63b8369520c1eafc32a0430b5b6c287bf4"
+dependencies = [
+ "sha2 0.10.9",
+ "tinyvec",
+]
+
 [[package]]
 name = "built"
 version = "0.7.7"
@@ -174,6 +312,15 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f1fe948ff07f4bd06c30984e69f5b4899c516a3ef74f34df92a2df2ab535495"
 
+[[package]]
+name = "cbc"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26b52a9543ae338f279b96b0b9fed9c8093744685043739079ce85cd58f289a6"
+dependencies = [
+ "cipher",
+]
+
 [[package]]
 name = "cc"
 version = "1.2.13"
@@ -210,6 +357,41 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "chacha20"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3613f74bd2eac03dad61bd53dbe620703d4371614fe0bc3b9f04dd36fe4e818"
+dependencies = [
+ "cfg-if",
+ "cipher",
+ "cpufeatures",
+]
+
+[[package]]
+name = "chacha20poly1305"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "10cd79432192d1c0f4e1a0fef9527696cc039165d729fb41b3f4f4f354c2dc35"
+dependencies = [
+ "aead",
+ "chacha20",
+ "cipher",
+ "poly1305",
+ "zeroize",
+]
+
+[[package]]
+name = "cipher"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
+dependencies = [
+ "crypto-common 0.1.6",
+ "inout",
+ "zeroize",
+]
+
 [[package]]
 name = "clang-sys"
 version = "1.8.1"
@@ -233,6 +415,30 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3c6565524986fe3225da0beb9b4aa55ebc73cd57ff8cb4ccf016ca4c8d006af"
 
+[[package]]
+name = "constant_time_eq"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c74b8349d32d297c9134b8c88677813a227df8f779daa29bfc29c183fe3dca6"
+
+[[package]]
+name = "core2"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "239fa3ae9b63c2dc74bd3fa852d4792b8b305ae64eeede946265b6af62f1fff3"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "cpufeatures"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59ed5838eebb26a2bb2e58f6d5b5316989ae9d08bab10e0e6d103e656d1b0280"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.4.2"
@@ -279,6 +485,46 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "43da5946c66ffcc7745f48db692ffbb10a83bfe0afd96235c5c2a4fb23994929"
 
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
+[[package]]
+name = "crypto-common"
+version = "0.2.0-rc.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0b8ce8218c97789f16356e7896b3714f26c2ee1079b79c0b7ae7064bb9089fa"
+dependencies = [
+ "hybrid-array",
+]
+
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer 0.10.4",
+ "crypto-common 0.1.6",
+]
+
+[[package]]
+name = "digest"
+version = "0.11.0-pre.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf2e3d6615d99707295a9673e889bf363a04b2a466bd320c65a72536f7577379"
+dependencies = [
+ "block-buffer 0.11.0-rc.3",
+ "crypto-common 0.2.0-rc.1",
+ "subtle",
+]
+
 [[package]]
 name = "either"
 version = "1.13.0"
@@ -315,6 +561,14 @@ dependencies = [
  "syn 2.0.98",
 ]
 
+[[package]]
+name = "equihash"
+version = "0.2.2"
+dependencies = [
+ "blake2b_simd",
+ "core2",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -346,6 +600,13 @@ dependencies = [
  "zune-inflate",
 ]
 
+[[package]]
+name = "f4jumble"
+version = "0.1.1"
+dependencies = [
+ "blake2b_simd",
+]
+
 [[package]]
 name = "fax"
 version = "0.2.6"
@@ -375,6 +636,17 @@ dependencies = [
  "simd-adler32",
 ]
 
+[[package]]
+name = "ff"
+version = "0.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0b50bfb653653f9ca9095b427bed08ab8d75a137839d9ad64eb11810d5b6393"
+dependencies = [
+ "bitvec",
+ "rand_core",
+ "subtle",
+]
+
 [[package]]
 name = "flate2"
 version = "1.0.35"
@@ -385,6 +657,36 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "fpe"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26c4b37de5ae15812a764c958297cfc50f5c010438f60c6ce75d11b802abd404"
+dependencies = [
+ "cbc",
+ "cipher",
+ "libm",
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "funty"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
+
+[[package]]
+name = "generic-array"
+version = "0.14.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bb6743198531e02858aeaea5398fcc883e71851fcbcb5a2f773e2fb6cb1edf2"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
 [[package]]
 name = "getrandom"
 version = "0.2.16"
@@ -396,6 +698,18 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "getset"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9cf0fc11e47561d47397154977bc219f4cf809b2974facc3ccb3b89e2436f912"
+dependencies = [
+ "proc-macro-error2",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.98",
+]
+
 [[package]]
 name = "gif"
 version = "0.13.1"
@@ -412,6 +726,17 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8d1add55171497b4705a648c6b583acafb01d58050a51727785f0b2c8e0a2b2"
 
+[[package]]
+name = "group"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0f9ef7462f7c099f518d754361858f86d8a07af53ba9af0fe635bbccb151a63"
+dependencies = [
+ "ff",
+ "rand_core",
+ "subtle",
+]
+
 [[package]]
 name = "half"
 version = "2.4.1"
@@ -422,6 +747,18 @@ dependencies = [
  "crunchy",
 ]
 
+[[package]]
+name = "halo2_poseidon"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fa3da60b81f02f9b33ebc6252d766f843291fb4d2247a07ae73d20b791fc56f"
+dependencies = [
+ "bitvec",
+ "ff",
+ "group",
+ "pasta_curves",
+]
+
 [[package]]
 name = "hash32"
 version = "0.3.1"
@@ -463,6 +800,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "hmac"
+version = "0.13.0-pre.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e4b1fb14e4df79f9406b434b60acef9f45c26c50062cccf1346c6103b8c47d58"
+dependencies = [
+ "digest 0.11.0-pre.9",
+]
+
 [[package]]
 name = "home"
 version = "0.5.11"
@@ -472,6 +818,15 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "hybrid-array"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2d35805454dc9f8662a98d6d61886ffe26bd465f5960e0e55345c70d5c0d2a9"
+dependencies = [
+ "typenum",
+]
+
 [[package]]
 name = "image"
 version = "0.24.9"
@@ -541,6 +896,15 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "incrementalmerkletree"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30821f91f0fa8660edca547918dc59812893b497d07c1144f326f07fdd94aba9"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "indexmap"
 version = "2.11.0"
@@ -551,6 +915,15 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "inout"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "879f10e63c20629ecabbb64a8010319738c66a5cd0c29b02d63d272b03751d01"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "interpolate_name"
 version = "0.2.4"
@@ -589,11 +962,28 @@ dependencies = [
  "rayon",
 ]
 
+[[package]]
+name = "jubjub"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8499f7a74008aafbecb2a2e608a3e13e4dd3e84df198b604451efe93f2de6e61"
+dependencies = [
+ "bitvec",
+ "bls12_381",
+ "ff",
+ "group",
+ "rand_core",
+ "subtle",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
+dependencies = [
+ "spin",
+]
 
 [[package]]
 name = "lazycell"
@@ -661,6 +1051,12 @@ dependencies = [
  "windows-targets",
 ]
 
+[[package]]
+name = "libm"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f9fbbcab51052fe104eb5e5d351cf728d30a5be1fe14d9be8a3b097481fb97de"
+
 [[package]]
 name = "linked_list_allocator"
 version = "0.10.5"
@@ -704,6 +1100,12 @@ version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
+[[package]]
+name = "memuse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d97bbf43eb4f088f8ca469930cde17fa036207c9a5e02ccc5107c4e8b17c964"
+
 [[package]]
 name = "minimal-lexical"
 version = "0.2.1"
@@ -746,6 +1148,12 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "nonempty"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "549e471b99ccaf2f89101bec68f4d244457d5a95a9c3d0672e9564124397741d"
+
 [[package]]
 name = "noop_proc_macro"
 version = "0.3.0"
@@ -814,6 +1222,58 @@ version = "1.20.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "945462a4b81e43c4e3ba96bd7b49d834c6f61198356aa858733bc4acf3cbe62e"
 
+[[package]]
+name = "opaque-debug"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c08d65885ee38876c4f86fa503fb49d7b507c2b62552df7c70b2fce627e06381"
+
+[[package]]
+name = "orchard"
+version = "0.11.0"
+dependencies = [
+ "aes",
+ "bitvec",
+ "blake2b_simd",
+ "core2",
+ "ff",
+ "fpe",
+ "getset",
+ "group",
+ "halo2_poseidon",
+ "hex",
+ "incrementalmerkletree",
+ "lazy_static",
+ "memuse",
+ "nonempty",
+ "pasta_curves",
+ "rand",
+ "rand_core",
+ "reddsa",
+ "serde",
+ "sinsemilla",
+ "subtle",
+ "visibility",
+ "zcash_note_encryption",
+ "zcash_spec",
+ "zip32",
+]
+
+[[package]]
+name = "pasta_curves"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3e57598f73cc7e1b2ac63c79c517b31a0877cd7c402cdcaa311b5208de7a095"
+dependencies = [
+ "blake2b_simd",
+ "ff",
+ "group",
+ "lazy_static",
+ "rand",
+ "static_assertions",
+ "subtle",
+]
+
 [[package]]
 name = "paste"
 version = "1.0.15"
@@ -858,6 +1318,23 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "poly1305"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8159bd90725d2df49889a078b54f4f79e87f1f8a8444194cdca81d38f5393abf"
+dependencies = [
+ "cpufeatures",
+ "opaque-debug",
+ "universal-hash",
+]
+
+[[package]]
+name = "portable-atomic"
+version = "1.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f84267b20a16ea918e43c6a88433c2d54fa145c92a811b5b047ccbe153674483"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.21"
@@ -877,6 +1354,28 @@ dependencies = [
  "syn 2.0.98",
 ]
 
+[[package]]
+name = "proc-macro-error-attr2"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96de42df36bb9bba5542fe9f1a054b8cc87e172759a1868aa05c1f3acc89dfc5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+]
+
+[[package]]
+name = "proc-macro-error2"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11ec05c52be0a07b08061f7dd003e7d7092e0472bc731b4af7bb1ef876109802"
+dependencies = [
+ "proc-macro-error-attr2",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.98",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.93"
@@ -938,6 +1437,10 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "radium"
+version = "0.7.0"
+
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -998,7 +1501,7 @@ dependencies = [
  "rand_chacha",
  "simd_helpers",
  "system-deps",
- "thiserror",
+ "thiserror 1.0.69",
  "v_frame",
  "wasm-bindgen",
 ]
@@ -1038,6 +1541,32 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "reddsa"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78a5191930e84973293aa5f532b513404460cd2216c1cfb76d08748c15b40b02"
+dependencies = [
+ "blake2b_simd",
+ "byteorder",
+ "group",
+ "hex",
+ "jubjub",
+ "pasta_curves",
+ "rand_core",
+]
+
+[[package]]
+name = "redjubjub"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89b0ac1bc6bb3696d2c6f52cff8fba57238b81da8c0214ee6cd146eb8fde364e"
+dependencies = [
+ "rand_core",
+ "reddsa",
+ "zeroize",
+]
+
 [[package]]
 name = "regex"
 version = "1.11.1"
@@ -1073,6 +1602,24 @@ version = "0.8.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0c6a884d2998352bb4daf0183589aec883f16a6da1f4dde84d8e2e9a5409a1ce"
 
+[[package]]
+name = "ripemd"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd124222d17ad93a644ed9d011a40f4fb64aa54275c08cc216524a9ea82fb09f"
+dependencies = [
+ "digest 0.10.7",
+]
+
+[[package]]
+name = "ripemd"
+version = "0.2.0-pre.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e48cf93482ea998ad1302c42739bc73ab3adc574890c373ec89710e219357579"
+dependencies = [
+ "digest 0.11.0-pre.9",
+]
+
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"
@@ -1104,6 +1651,48 @@ version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ea1a2d0a644769cc99faa24c3ad26b379b786fe7c36fd3c546254801650e6dd"
 
+[[package]]
+name = "sapling-crypto"
+version = "0.5.0"
+dependencies = [
+ "aes",
+ "bitvec",
+ "blake2b_simd",
+ "blake2s_simd",
+ "bls12_381",
+ "core2",
+ "ff",
+ "fpe",
+ "getset",
+ "group",
+ "hex",
+ "incrementalmerkletree",
+ "jubjub",
+ "lazy_static",
+ "memuse",
+ "rand",
+ "rand_core",
+ "redjubjub",
+ "subtle",
+ "zcash_note_encryption",
+ "zcash_spec",
+ "zip32",
+]
+
+[[package]]
+name = "secp256k1"
+version = "0.29.1"
+dependencies = [
+ "secp256k1-sys",
+]
+
+[[package]]
+name = "secp256k1-sys"
+version = "0.10.0"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "serde"
 version = "1.0.217"
@@ -1143,6 +1732,39 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "sha1"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest 0.10.7",
+]
+
+[[package]]
+name = "sha2"
+version = "0.10.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7507d819769d01a365ab707794a4084392c824f54a7a6a7862f8c3d0892b283"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest 0.10.7",
+]
+
+[[package]]
+name = "sha2"
+version = "0.11.0-pre.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "540c0893cce56cdbcfebcec191ec8e0f470dd1889b6e7a0b503e310a94a168f5"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest 0.11.0-pre.9",
+]
+
 [[package]]
 name = "shlex"
 version = "1.3.0"
@@ -1164,18 +1786,48 @@ dependencies = [
  "quote",
 ]
 
+[[package]]
+name = "sinsemilla"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d268ae0ea06faafe1662e9967cd4f9022014f5eeb798e0c302c876df8b7af9c"
+dependencies = [
+ "group",
+ "pasta_curves",
+ "subtle",
+]
+
 [[package]]
 name = "smallvec"
 version = "1.13.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
 
+[[package]]
+name = "spin"
+version = "0.9.8"
+dependencies = [
+ "portable-atomic",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+
+[[package]]
+name = "subtle"
+version = "2.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
+
 [[package]]
 name = "syn"
 version = "1.0.109"
@@ -1211,6 +1863,12 @@ dependencies = [
  "version-compare",
 ]
 
+[[package]]
+name = "tap"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
+
 [[package]]
 name = "target-lexicon"
 version = "0.12.16"
@@ -1223,7 +1881,16 @@ version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6aaf5339b578ea85b50e080feb250a3e8ae8cfcdff9a461c9ec2904bc923f52"
 dependencies = [
- "thiserror-impl",
+ "thiserror-impl 1.0.69",
+]
+
+[[package]]
+name = "thiserror"
+version = "2.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f63587ca0f12b72a0600bcba1d40081f830876000bb46dd2337a3051618f4fc8"
+dependencies = [
+ "thiserror-impl 2.0.17",
 ]
 
 [[package]]
@@ -1237,6 +1904,17 @@ dependencies = [
  "syn 2.0.98",
 ]
 
+[[package]]
+name = "thiserror-impl"
+version = "2.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ff15c8ecd7de3849db632e14d18d2571fa09dfc5ed93479bc4485c7a517c913"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.98",
+]
+
 [[package]]
 name = "tiff"
 version = "0.9.1"
@@ -1262,6 +1940,21 @@ dependencies = [
  "zune-jpeg",
 ]
 
+[[package]]
+name = "tinyvec"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa5fdc3bce6191a1dbc8c02d5c8bffcf557bafa17c124c5264a458f1b0613fa"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
 [[package]]
 name = "toml"
 version = "0.8.23"
@@ -1296,12 +1989,28 @@ dependencies = [
  "winnow",
 ]
 
+[[package]]
+name = "typenum"
+version = "1.19.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "562d481066bde0658276a35467c4af00bdc6ee726305698a55b86e61d7ad82bb"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a210d160f08b701c8721ba1c726c11662f877ea6b7094007e1ca9a1041945034"
 
+[[package]]
+name = "universal-hash"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc1de2c688dc15305988b563c3854064043356019f97a4b46276fe734c4f07ea"
+dependencies = [
+ "crypto-common 0.1.6",
+ "subtle",
+]
+
 [[package]]
 name = "v_frame"
 version = "0.3.9"
@@ -1319,6 +2028,23 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "852e951cb7832cb45cb1169900d19760cfa39b82bc0ea9c0e5a14ae88411c98b"
 
+[[package]]
+name = "version_check"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
+
+[[package]]
+name = "visibility"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d674d135b4a8c1d7e813e2f8d1c9a58308aee4a680323066025e53132218bd91"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.98",
+]
+
 [[package]]
 name = "wasi"
 version = "0.11.1+wasi-snapshot-preview1"
@@ -1483,6 +2209,143 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "wyz"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05f360fc0b24296329c78fda852a1e9ae82de9cf7b27dae4b7f62f118f77b9ed"
+dependencies = [
+ "tap",
+]
+
+[[package]]
+name = "zcash_address"
+version = "0.10.1"
+dependencies = [
+ "bech32",
+ "bs58",
+ "core2",
+ "f4jumble",
+ "zcash_encoding",
+ "zcash_protocol",
+]
+
+[[package]]
+name = "zcash_encoding"
+version = "0.3.0"
+dependencies = [
+ "core2",
+ "hex",
+ "nonempty",
+]
+
+[[package]]
+name = "zcash_note_encryption"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77efec759c3798b6e4d829fcc762070d9b229b0f13338c40bf993b7b609c2272"
+dependencies = [
+ "chacha20",
+ "chacha20poly1305",
+ "cipher",
+ "rand_core",
+ "subtle",
+]
+
+[[package]]
+name = "zcash_primitives"
+version = "0.26.1"
+dependencies = [
+ "bip32",
+ "blake2b_simd",
+ "block-buffer 0.11.0-rc.3",
+ "bs58",
+ "core2",
+ "crypto-common 0.2.0-rc.1",
+ "equihash",
+ "ff",
+ "fpe",
+ "getset",
+ "group",
+ "hex",
+ "incrementalmerkletree",
+ "jubjub",
+ "memuse",
+ "nonempty",
+ "orchard",
+ "rand",
+ "rand_core",
+ "redjubjub",
+ "ripemd 0.1.3",
+ "sapling-crypto",
+ "sha2 0.10.9",
+ "subtle",
+ "zcash_address",
+ "zcash_encoding",
+ "zcash_note_encryption",
+ "zcash_protocol",
+ "zcash_script",
+ "zcash_spec",
+ "zcash_transparent",
+ "zip32",
+]
+
+[[package]]
+name = "zcash_protocol"
+version = "0.7.1"
+dependencies = [
+ "core2",
+ "hex",
+ "zcash_encoding",
+]
+
+[[package]]
+name = "zcash_script"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9bed6cf5b2b4361105d4ea06b2752f0c8af4641756c7fbc9858a80af186c234f"
+dependencies = [
+ "bip32",
+ "bitflags 2.8.0",
+ "bounded-vec",
+ "hex",
+ "ripemd 0.1.3",
+ "secp256k1",
+ "sha1",
+ "sha2 0.10.9",
+ "thiserror 2.0.17",
+]
+
+[[package]]
+name = "zcash_spec"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ded3f58b93486aa79b85acba1001f5298f27a46489859934954d262533ee2915"
+dependencies = [
+ "blake2b_simd",
+]
+
+[[package]]
+name = "zcash_transparent"
+version = "0.6.1"
+dependencies = [
+ "bip32",
+ "blake2b_simd",
+ "bs58",
+ "core2",
+ "getset",
+ "hex",
+ "ripemd 0.1.3",
+ "sha2 0.10.9",
+ "subtle",
+ "zcash_address",
+ "zcash_encoding",
+ "zcash_protocol",
+ "zcash_script",
+ "zcash_spec",
+ "zip32",
+]
+
 [[package]]
 name = "zerocopy"
 version = "0.8.26"
@@ -1508,6 +2371,33 @@ name = "zeroize"
 version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
+dependencies = [
+ "zeroize_derive",
+]
+
+[[package]]
+name = "zeroize_derive"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.98",
+]
+
+[[package]]
+name = "zip32"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b64bf5186a8916f7a48f2a98ef599bf9c099e2458b36b819e393db1c0e768c4b"
+dependencies = [
+ "bech32",
+ "blake2b_simd",
+ "memuse",
+ "subtle",
+ "zcash_spec",
+]
 
 [[package]]
 name = "zune-core"
diff --git a/Cargo.toml b/Cargo.toml
index 935e3ae..018b6d6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
-name = "app-boilerplate-rust"
-version = "1.7.6"
+name = "app-zcash-rust"
+version = "0.0.1"
 authors = ["Ledger"]
 edition = "2021"
 
@@ -12,11 +12,32 @@ serde-json-core = { git = "https://github.com/rust-embedded-community/serde-json
 hex = { version = "0.4.3", default-features = false, features = ["serde", "alloc"] }
 numtoa = "0.2.4"
 
+# librustzcash deps
+orchard = { path = "./deps/orchard", default-features = false }
+sapling = { package = "sapling-crypto", path = "./deps/sapling-crypto", default-features = false }
+secp256k1 = { path = "./deps/rust-secp256k1", default-features = false }
+
+# librustzcash packages
+zcash_primitives = { path = "./deps/librustzcash/zcash_primitives", default-features = false }
+zcash_transparent = { path = "./deps/librustzcash/zcash_transparent", default-features = false }
+zcash_address = { path = "./deps/librustzcash/components/zcash_address", default-features = false }
+
 [build-dependencies]
 image = "0.25.7"
 
+[patch.crates-io]
+# Used in orchard
+radium = { path = "./deps/radium" }
+# Used in bip32 in librustzcash
+secp256k1 = { path = "./deps/rust-secp256k1" }
+# Used in librustzcash
+orchard = { path = "./deps/orchard" }
+sapling-crypto = { path = "./deps/sapling-crypto" }
+# Used by multiple deps
+spin = { path = "./deps/spin" }
+
 [profile.release]
-opt-level = 'z'
+opt-level = 3
 lto = true
 
 [features]
diff --git a/deps/librustzcash b/deps/librustzcash
new file mode 160000
index 0000000..a40ee35
--- /dev/null
+++ b/deps/librustzcash
@@ -0,0 +1 @@
+Subproject commit a40ee353bba84d1cb3eaf1889df433d3be9c79e5
diff --git a/deps/orchard b/deps/orchard
new file mode 160000
index 0000000..9d89b50
--- /dev/null
+++ b/deps/orchard
@@ -0,0 +1 @@
+Subproject commit 9d89b504c52dc69064ca431e8311a4cd1c279b44
diff --git a/deps/patches/librustzcash_dep.patch b/deps/patches/librustzcash_dep.patch
new file mode 100644
index 0000000..86d5be0
--- /dev/null
+++ b/deps/patches/librustzcash_dep.patch
@@ -0,0 +1,26 @@
+diff --git a/Cargo.toml b/Cargo.toml
+index 7fd4f9cfc..59c751aea 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -23,7 +23,7 @@ resolver = "2"
+ 
+ [workspace.package]
+ edition = "2024"
+-rust-version = "1.85.1"
++rust-version = "1.85.0"
+ repository = "https://github.com/zcash/librustzcash"
+ license = "MIT OR Apache-2.0"
+ categories = ["cryptography::cryptocurrencies"]
+diff --git a/zcash_primitives/Cargo.toml b/zcash_primitives/Cargo.toml
+index 2b74e67a4..819971082 100644
+--- a/zcash_primitives/Cargo.toml
++++ b/zcash_primitives/Cargo.toml
+@@ -38,7 +38,7 @@ sha2.workspace = true
+ 
+ # - Logging and metrics
+ memuse.workspace = true
+-tracing = { workspace = true, default-features = false }
++#tracing = { workspace = true, default-features = false }
+ 
+ # - Secret management
+ subtle.workspace = true
diff --git a/deps/patches/orchard_dep.patch b/deps/patches/orchard_dep.patch
new file mode 100644
index 0000000..d0ee0a0
--- /dev/null
+++ b/deps/patches/orchard_dep.patch
@@ -0,0 +1,13 @@
+diff --git a/Cargo.toml b/Cargo.toml
+index 07b1a66..9295680 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -56,7 +56,7 @@ halo2_proofs = { version = "0.3", optional = true, default-features = false, fea
+ getset = "0.1"
+ 
+ # Logging
+-tracing = { version = "0.1", default-features = false }
++#tracing = { version = "0.1", default-features = false }
+ 
+ # No-std support
+ core2 = { version = "0.3", default-features = false, features = ["alloc"] }
diff --git a/deps/patches/radium_dep.patch b/deps/patches/radium_dep.patch
new file mode 100644
index 0000000..3534a72
--- /dev/null
+++ b/deps/patches/radium_dep.patch
@@ -0,0 +1,39 @@
+diff --git a/Cargo.toml b/Cargo.toml
+index 8204e6d..4b691cf 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -22,3 +22,13 @@ edition = "2018"
+ 
+ [dev-dependencies]
+ static_assertions = "1"
++
++
++[lints.rust]
++unexpected_cfgs = { level = "warn", check-cfg = [
++    'cfg(radium_atomic_8)',
++    'cfg(radium_atomic_16)',
++    'cfg(radium_atomic_32)',
++    'cfg(radium_atomic_64)',
++    'cfg(radium_atomic_ptr)'
++] }
+\ No newline at end of file
+diff --git a/build.rs b/build.rs
+index 884ec99..eb26703 100644
+--- a/build.rs
++++ b/build.rs
+@@ -83,13 +83,14 @@ fn main() -> Result<(), Box<dyn Error>> {
+     match tgt_arch {
+         "armv5te" | "mips" | "mipsel" | "powerpc" | "riscv32imac" | "thumbv7em" | "thumbv7m"
+         | "thumbv8m.base" | "thumbv8m.main" | "armebv7r" | "armv7r" => atomics.has_64 = false,
++        "nanosplus" | "stax" | "flex" | "apex_p"  => atomics.has_64 = false,
+         // These ARMv7 targets have 32-bit pointers and 64-bit atomics.
+         "armv7" | "armv7a" | "armv7s" => atomics.has_64 = true,
+         // "riscv32imc-unknown-none-elf" and "riscv32imac-unknown-none-elf" are
+         // both `target_arch = "riscv32", and have no stable `cfg`-discoverable
+         // distinction. As such, the non-atomic RISC-V targets must be
+         // discovered here.
+-        "riscv32i" | "riscv32imc" | "thumbv6m" => atomics = Atomics::NONE,
++        "riscv32i" | "riscv32imc" | "thumbv6m" | "nanox" => atomics = Atomics::NONE,
+         _ => {}
+     }
+     #[allow(clippy::match_single_binding, clippy::single_match)]
diff --git a/deps/patches/rust-secp256k1_dep.patch b/deps/patches/rust-secp256k1_dep.patch
new file mode 100644
index 0000000..090dad5
--- /dev/null
+++ b/deps/patches/rust-secp256k1_dep.patch
@@ -0,0 +1,112 @@
+diff --git a/secp256k1-sys/build.rs b/secp256k1-sys/build.rs
+index 49d02e35..87247500 100644
+--- a/secp256k1-sys/build.rs
++++ b/secp256k1-sys/build.rs
+@@ -11,55 +11,57 @@
+ 
+ extern crate cc;
+ 
+-use std::env;
++fn main() {}
+ 
+-fn main() {
+-    // Actual build
+-    let mut base_config = cc::Build::new();
+-    base_config.include("depend/secp256k1/")
+-               .include("depend/secp256k1/include")
+-               .include("depend/secp256k1/src")
+-               .flag_if_supported("-Wno-unused-function") // some ecmult stuff is defined but not used upstream
+-               .flag_if_supported("-Wno-unused-parameter") // patching out printf causes this warning
+-               .define("SECP256K1_API", Some(""))
+-               .define("ENABLE_MODULE_ECDH", Some("1"))
+-               .define("ENABLE_MODULE_SCHNORRSIG", Some("1"))
+-               .define("ENABLE_MODULE_EXTRAKEYS", Some("1"))
+-               .define("ENABLE_MODULE_ELLSWIFT", Some("1"))
+-               // upstream sometimes introduces calls to printf, which we cannot compile
+-               // with WASM due to its lack of libc. printf is never necessary and we can
+-               // just #define it away.
+-               .define("printf(...)", Some(""));
+-
+-    if cfg!(feature = "lowmemory") {
+-        base_config.define("ECMULT_WINDOW_SIZE", Some("4")); // A low-enough value to consume negligible memory
+-        base_config.define("ECMULT_GEN_PREC_BITS", Some("2"));
+-    } else {
+-        base_config.define("ECMULT_GEN_PREC_BITS", Some("4"));
+-        base_config.define("ECMULT_WINDOW_SIZE", Some("15")); // This is the default in the configure file (`auto`)
+-    }
+-    base_config.define("USE_EXTERNAL_DEFAULT_CALLBACKS", Some("1"));
+-    #[cfg(feature = "recovery")]
+-    base_config.define("ENABLE_MODULE_RECOVERY", Some("1"));
+-
+-    // WASM headers and size/align defines.
+-    if env::var("CARGO_CFG_TARGET_ARCH").unwrap() == "wasm32" {
+-        base_config.include("wasm/wasm-sysroot")
+-                   .file("wasm/wasm.c");
+-    }
+-
+-    // secp256k1
+-    base_config.file("depend/secp256k1/contrib/lax_der_parsing.c")
+-               .file("depend/secp256k1/src/precomputed_ecmult_gen.c")
+-               .file("depend/secp256k1/src/precomputed_ecmult.c")
+-               .file("depend/secp256k1/src/secp256k1.c");
+-
+-    if base_config.try_compile("libsecp256k1.a").is_err() {
+-        // Some embedded platforms may not have, eg, string.h available, so if the build fails
+-        // simply try again with the wasm sysroot (but without the wasm type sizes) in the hopes
+-        // that it works.
+-        base_config.include("wasm/wasm-sysroot");
+-        base_config.compile("libsecp256k1.a");
+-    }
+-}
++//use std::env;
++//
++//fn main() {
++//    // Actual build
++//    let mut base_config = cc::Build::new();
++//    base_config.include("depend/secp256k1/")
++//               .include("depend/secp256k1/include")
++//               .include("depend/secp256k1/src")
++//               .flag_if_supported("-Wno-unused-function") // some ecmult stuff is defined but not used upstream
++//               .flag_if_supported("-Wno-unused-parameter") // patching out printf causes this warning
++//               .define("SECP256K1_API", Some(""))
++//               .define("ENABLE_MODULE_ECDH", Some("1"))
++//               .define("ENABLE_MODULE_SCHNORRSIG", Some("1"))
++//               .define("ENABLE_MODULE_EXTRAKEYS", Some("1"))
++//               .define("ENABLE_MODULE_ELLSWIFT", Some("1"))
++//               // upstream sometimes introduces calls to printf, which we cannot compile
++//               // with WASM due to its lack of libc. printf is never necessary and we can
++//               // just #define it away.
++//               .define("printf(...)", Some(""));
++//
++//    if cfg!(feature = "lowmemory") {
++//        base_config.define("ECMULT_WINDOW_SIZE", Some("4")); // A low-enough value to consume negligible memory
++//        base_config.define("ECMULT_GEN_PREC_BITS", Some("2"));
++//    } else {
++//        base_config.define("ECMULT_GEN_PREC_BITS", Some("4"));
++//        base_config.define("ECMULT_WINDOW_SIZE", Some("15")); // This is the default in the configure file (`auto`)
++//    }
++//    base_config.define("USE_EXTERNAL_DEFAULT_CALLBACKS", Some("1"));
++//    #[cfg(feature = "recovery")]
++//    base_config.define("ENABLE_MODULE_RECOVERY", Some("1"));
++//
++//    // WASM headers and size/align defines.
++//    if env::var("CARGO_CFG_TARGET_ARCH").unwrap() == "wasm32" {
++//        base_config.include("wasm/wasm-sysroot")
++//                   .file("wasm/wasm.c");
++//    }
++//
++//    // secp256k1
++//    base_config.file("depend/secp256k1/contrib/lax_der_parsing.c")
++//               .file("depend/secp256k1/src/precomputed_ecmult_gen.c")
++//               .file("depend/secp256k1/src/precomputed_ecmult.c")
++//               .file("depend/secp256k1/src/secp256k1.c");
++//
++//    if base_config.try_compile("libsecp256k1.a").is_err() {
++//        // Some embedded platforms may not have, eg, string.h available, so if the build fails
++//        // simply try again with the wasm sysroot (but without the wasm type sizes) in the hopes
++//        // that it works.
++//        base_config.include("wasm/wasm-sysroot");
++//        base_config.compile("libsecp256k1.a");
++//    }
++//}
+ 
diff --git a/deps/patches/sapling-crypto_dep.patch b/deps/patches/sapling-crypto_dep.patch
new file mode 100644
index 0000000..ee92654
--- /dev/null
+++ b/deps/patches/sapling-crypto_dep.patch
@@ -0,0 +1,31 @@
+diff --git a/Cargo.toml b/Cargo.toml
+index 868d316..42121a7 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -51,7 +51,7 @@ hex = { version = "0.4", default-features = false, features = ["alloc"] }
+ 
+ # Logging and metrics
+ memuse = { version = "0.2.2", default-features = false }
+-tracing = { version = "0.1", default-features = false }
++#tracing = { version = "0.1", default-features = false }
+ 
+ # Note Commitment Trees
+ bitvec = { version = "1", default-features = false }
+@@ -64,7 +64,7 @@ zcash_note_encryption = { version = "0.4", features = ["pre-zip-212"] }
+ subtle = { version = "2.2.3", default-features = false }
+ 
+ # Static constants
+-lazy_static = "1"
++lazy_static = { version = "1", default-features = false, features = ["spin_no_std"] }
+ 
+ # Test dependencies
+ proptest = { version = "1", optional = true }
+@@ -104,6 +104,8 @@ circuit = [
+   "std"
+ ]
+ 
++#no_std = [ "lazy_static/spin_no_std" ]
++
+ ## Enables multithreading support for creating proofs.
+ multicore = ["bellman?/multicore"]
+ 
diff --git a/deps/patches/spin_dep.patch b/deps/patches/spin_dep.patch
new file mode 100644
index 0000000..e887efa
--- /dev/null
+++ b/deps/patches/spin_dep.patch
@@ -0,0 +1,39 @@
+diff --git a/Cargo.toml b/Cargo.toml
+index 24761ec..eb9862b 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -14,7 +14,7 @@ rust-version = "1.38"
+ 
+ [dependencies]
+ lock_api_crate = { package = "lock_api", version = "0.4", optional = true }
+-portable-atomic = { version = "1", optional = true, default-features = false }
++portable-atomic = { version = "1", default-features = false, features = ["unsafe-assume-single-core"] }
+ 
+ [features]
+ default = ["lock_api", "mutex", "spin_mutex", "rwlock", "once", "lazy", "barrier"]
+@@ -60,7 +60,7 @@ std = []
+ # implementation that sound for your system by implementing an unsafe trait.
+ # See the documentation for the `portable-atomic` crate for more information:
+ # https://docs.rs/portable-atomic/latest/portable_atomic/#optional-cfg
+-portable_atomic = ["portable-atomic"]
++#portable_atomic = ["portable-atomic"]
+ 
+ [package.metadata.docs.rs]
+ all-features = true
+diff --git a/src/lib.rs b/src/lib.rs
+index 50768bc..692e6eb 100644
+--- a/src/lib.rs
++++ b/src/lib.rs
+@@ -63,12 +63,7 @@
+ #[cfg(any(test, feature = "std"))]
+ extern crate core;
+ 
+-#[cfg(feature = "portable_atomic")]
+ extern crate portable_atomic;
+-
+-#[cfg(not(feature = "portable_atomic"))]
+-use core::sync::atomic;
+-#[cfg(feature = "portable_atomic")]
+ use portable_atomic as atomic;
+ 
+ #[cfg(feature = "barrier")]
diff --git a/deps/radium b/deps/radium
new file mode 160000
index 0000000..3f27e0d
--- /dev/null
+++ b/deps/radium
@@ -0,0 +1 @@
+Subproject commit 3f27e0d827338aee919213fd071b99819a1b9fff
diff --git a/deps/rust-secp256k1 b/deps/rust-secp256k1
new file mode 160000
index 0000000..1a1fc57
--- /dev/null
+++ b/deps/rust-secp256k1
@@ -0,0 +1 @@
+Subproject commit 1a1fc57fb99a5a42b996d3cdde5c48fda3797709
diff --git a/deps/sapling-crypto b/deps/sapling-crypto
new file mode 160000
index 0000000..6a8282b
--- /dev/null
+++ b/deps/sapling-crypto
@@ -0,0 +1 @@
+Subproject commit 6a8282be0959b410a0b622cd5eb84f8c3c134078
diff --git a/deps/spin b/deps/spin
new file mode 160000
index 0000000..502c9dc
--- /dev/null
+++ b/deps/spin
@@ -0,0 +1 @@
+Subproject commit 502c9dca17c99762184095c9d64c0aedd1db97ff
diff --git a/init_deps.sh b/init_deps.sh
new file mode 100755
index 0000000..151a655
--- /dev/null
+++ b/init_deps.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+set -e
+set -o pipefail
+
+# Initialize and update git submodules
+git submodule update --init --recursive
+
+pushd deps > /dev/null
+
+# Patch submodule deps
+# For every patch file in deps/patches, apply it to the corresponding submodule
+for patch_file in patches/*.patch; do
+    # Extract submodule name from patch file name
+    patch_filename=$(basename "$patch_file")
+    submodule_name="${patch_filename%_dep.patch}"
+    echo "Applying patch $patch_file to submodule $submodule_name"
+    # Change to submodule directory
+    pushd "$submodule_name" > /dev/null
+    # Apply the patch
+    git apply "../$patch_file"
+    # Return to original directory
+    popd > /dev/null
+done
+
+popd > /dev/null
+
+
diff --git a/update_patches.sh b/update_patches.sh
new file mode 100755
index 0000000..7cbf468
--- /dev/null
+++ b/update_patches.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -e
+set -o pipefail
+
+pushd deps > /dev/null
+
+# For every submodule, cd into it directory and generate patches
+# don't forget to skip the patches directory
+for submodule_dir in */ ; do
+    [[ "$submodule_dir" == "patches/" ]] && continue
+    submodule_name=$(basename "$submodule_dir")
+    echo "Generating patch for submodule $submodule_name"
+    pushd "$submodule_name" > /dev/null
+    # Generate patch and save it to patches directory
+    git diff > "../patches/${submodule_name}_dep.patch"
+    popd > /dev/null
+done
+
+popd > /dev/null
\ No newline at end of file