diff --git a/harmony-rs/Cargo.lock b/harmony-rs/Cargo.lock
index 3ac3687..2641eef 100644
--- a/harmony-rs/Cargo.lock
+++ b/harmony-rs/Cargo.lock
@@ -17,6 +17,22 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
+[[package]]
+name = "adler2"
+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",
+ "generic-array",
+]
+
 [[package]]
 name = "aes"
 version = "0.8.4"
@@ -28,6 +44,89 @@ dependencies = [
  "cpufeatures",
 ]
 
+[[package]]
+name = "aes-gcm"
+version = "0.10.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "831010a0f742e1209b3bcea8fab6a8e149051ba6099432c8cb2cc117dec3ead1"
+dependencies = [
+ "aead",
+ "aes",
+ "cipher",
+ "ctr",
+ "ghash",
+ "subtle",
+]
+
+[[package]]
+name = "aho-corasick"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "anstream"
+version = "0.6.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64e15c1ab1f89faffbf04a634d5e1962e9074f2741eef6d97f3c4e322426d526"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bec1de6f59aedf83baf9ff929c98f2ad654b97c9510f4e70cf6f661d49fd5b1"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb47de1e80c2b463c735db5b217a0ddc39d612e7ac9e2e96a5aed1f57616c1cb"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d36fc52c7f6c869915e99412912f22093507da8d9e942ceaf66fe4b7c14422a"
+dependencies = [
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5bf74e1b6e971609db8ca7a9ce79fd5768ab6ae46441c572e46cf596f59e57f8"
+dependencies = [
+ "anstyle",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "async-trait"
+version = "0.1.82"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a27b8a3a6e1a44fa4c8baf1f653e4172e81486d4941f2237e20dc2d0cf4ddff1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.3.0"
@@ -44,17 +143,40 @@ dependencies = [
  "cc",
  "cfg-if",
  "libc",
- "miniz_oxide",
+ "miniz_oxide 0.7.4",
  "object",
  "rustc-demangle",
 ]
 
+[[package]]
+name = "base16ct"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
+
 [[package]]
 name = "base64"
 version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64ct"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
+
+[[package]]
+name = "bcrypt-pbkdf"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6aeac2e1fe888769f34f05ac343bbef98b14d1ffb292ab69d4608b3abc86f2a2"
+dependencies = [
+ "blowfish",
+ "pbkdf2 0.12.2",
+ "sha2",
+]
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -97,6 +219,16 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "blowfish"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e412e2cd0f2b2d93e02543ceae7917b3c70331573df19ee046bcbc35e45e87d7"
+dependencies = [
+ "byteorder",
+ "cipher",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.16.0"
@@ -139,6 +271,17 @@ 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 = "cipher"
 version = "0.4.4"
@@ -149,6 +292,18 @@ dependencies = [
  "inout",
 ]
 
+[[package]]
+name = "colorchoice"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3fd119d74b830634cea2a0f58bbd0d54540518a14397557951e79340abc28c0"
+
+[[package]]
+name = "const-oid"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
+
 [[package]]
 name = "core-foundation"
 version = "0.9.4"
@@ -174,6 +329,27 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "crc32fast"
+version = "1.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a97769d94ddab943e4510d138150169a2758b5ef3eb191a9ee688de3e23ef7b3"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "crypto-bigint"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0dc92fb57ca44df6db8059111ab3af99a63d5d0f8375d9972e319a379c6bab76"
+dependencies = [
+ "generic-array",
+ "rand_core",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "crypto-common"
 version = "0.1.6"
@@ -181,9 +357,83 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
 dependencies = [
  "generic-array",
+ "rand_core",
  "typenum",
 ]
 
+[[package]]
+name = "ctr"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0369ee1ad671834580515889b80f2ea915f23b8be8d0daa4bbaf2ac5c7590835"
+dependencies = [
+ "cipher",
+]
+
+[[package]]
+name = "curve25519-dalek"
+version = "4.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97fb8b7c4503de7d6ae7b42ab72a5a59857b4c937ec27a3d4539dba95b5ab2be"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "curve25519-dalek-derive",
+ "digest",
+ "fiat-crypto",
+ "rustc_version",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "curve25519-dalek-derive"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f46882e17999c6cc590af592290432be3bce0428cb0d5f8b6715e4dc7b383eb3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "data-encoding"
+version = "2.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8566979429cf69b49a5c740c60791108e86440e8be149bbea4fe54d2c32d6e2"
+
+[[package]]
+name = "der"
+version = "0.7.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f55bf8e7b65898637379c1b74eb1551107c8294ed26d855ceb9fd1a09cfc9bc0"
+dependencies = [
+ "const-oid",
+ "pem-rfc7468",
+ "zeroize",
+]
+
+[[package]]
+name = "derive-new"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2cdc8d50f426189eef89dac62fabfa0abb27d5cc008f25bf4156a0203325becc"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "des"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffdd80ce8ce993de27e9f063a444a4d53ce8e8db4c1f00cc03af5ad5a9867a1e"
+dependencies = [
+ "cipher",
+]
+
 [[package]]
 name = "digest"
 version = "0.10.7"
@@ -191,10 +441,71 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
  "block-buffer",
+ "const-oid",
  "crypto-common",
  "subtle",
 ]
 
+[[package]]
+name = "ecdsa"
+version = "0.16.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee27f32b5c5292967d2d4a9d7f1e0b0aed2c15daded5a60300e4abb9d8020bca"
+dependencies = [
+ "der",
+ "digest",
+ "elliptic-curve",
+ "rfc6979",
+ "signature",
+ "spki",
+]
+
+[[package]]
+name = "ed25519"
+version = "2.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "115531babc129696a58c64a4fef0a8bf9e9698629fb97e9e40767d235cfbcd53"
+dependencies = [
+ "pkcs8",
+ "signature",
+]
+
+[[package]]
+name = "ed25519-dalek"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a3daa8e81a3963a60642bcc1f90a670680bd4a77535faa384e9d1c79d620871"
+dependencies = [
+ "curve25519-dalek",
+ "ed25519",
+ "rand_core",
+ "serde",
+ "sha2",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "elliptic-curve"
+version = "0.13.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5e6043086bf7973472e0c7dff2142ea0b680d30e18d9cc40f267efbf222bd47"
+dependencies = [
+ "base16ct",
+ "crypto-bigint",
+ "digest",
+ "ff",
+ "generic-array",
+ "group",
+ "hkdf",
+ "pem-rfc7468",
+ "pkcs8",
+ "rand_core",
+ "sec1",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.34"
@@ -204,6 +515,29 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "env_filter"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f2c92ceda6ceec50f43169f9ee8424fe2db276791afde7b2cd8bc084cb376ab"
+dependencies = [
+ "log",
+ "regex",
+]
+
+[[package]]
+name = "env_logger"
+version = "0.11.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e13fa619b91fb2381732789fc5de83b45675e882f66623b7d8cb4f643017018d"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "env_filter",
+ "humantime",
+ "log",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.1"
@@ -226,6 +560,32 @@ version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e8c02a5121d4ea3eb16a80748c74f5549a5665e4c21333c6098f283870fbdea6"
 
+[[package]]
+name = "ff"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ded41244b729663b1e574f1b4fb731469f69f79c17667b5d776b16cda0479449"
+dependencies = [
+ "rand_core",
+ "subtle",
+]
+
+[[package]]
+name = "fiat-crypto"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28dea519a9695b9977216879a3ebfddf92f1c08c05d984f8996aecd6ecdc811d"
+
+[[package]]
+name = "flate2"
+version = "1.0.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "324a1be68054ef05ad64b861cc9eaf1d623d2d8cb25b4bf2cb9cdd902b4bf253"
+dependencies = [
+ "crc32fast",
+ "miniz_oxide 0.8.0",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -262,6 +622,21 @@ version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
 
+[[package]]
+name = "futures"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "645c6916888f6cb6350d2550b80fb63e734897a8498abe35cfb732b6487804b0"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
 [[package]]
 name = "futures-channel"
 version = "0.3.30"
@@ -269,6 +644,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eac8f7d7865dcb88bd4373ab671c8cf4508703796caa2b1985a9ca867b3fcb78"
 dependencies = [
  "futures-core",
+ "futures-sink",
 ]
 
 [[package]]
@@ -277,12 +653,34 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dfc6580bb841c5a68e9ef15c77ccc837b40a7504914d52e47b8b0e9bbda25a1d"
 
+[[package]]
+name = "futures-executor"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a576fc72ae164fca6b9db127eaa9a9dda0d61316034f33a0a0d4eda41f02b01d"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
 [[package]]
 name = "futures-io"
 version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a44623e20b9681a318efdd71c299b6b222ed6f231972bfe2f224ebad6311f0c1"
 
+[[package]]
+name = "futures-macro"
+version = "0.3.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "futures-sink"
 version = "0.3.30"
@@ -301,8 +699,11 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d6401deb83407ab3da39eba7e33987a73c3df0c82b4bb5813ee871c19c41d48"
 dependencies = [
+ "futures-channel",
  "futures-core",
  "futures-io",
+ "futures-macro",
+ "futures-sink",
  "futures-task",
  "memchr",
  "pin-project-lite",
@@ -318,6 +719,7 @@ checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
 dependencies = [
  "typenum",
  "version_check",
+ "zeroize",
 ]
 
 [[package]]
@@ -331,12 +733,33 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "ghash"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0d8a4362ccb29cb0b265253fb0a2728f592895ee6854fd9bc13f2ffda266ff1"
+dependencies = [
+ "opaque-debug",
+ "polyval",
+]
+
 [[package]]
 name = "gimli"
 version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40ecd4077b5ae9fd2e9e169b102c6c330d0605168eb0e8bf79952b256dbefffd"
 
+[[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 = "h2"
 version = "0.3.26"
@@ -360,9 +783,17 @@ dependencies = [
 name = "harmony-rs"
 version = "0.1.0"
 dependencies = [
+ "derive-new",
+ "env_logger",
  "libredfish",
+ "log",
  "reqwest",
+ "russh",
  "rust-ipmi",
+ "semver",
+ "serde",
+ "serde_json",
+ "tokio",
 ]
 
 [[package]]
@@ -377,6 +808,21 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
 
+[[package]]
+name = "hex-literal"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6fe2267d4ed49bc07b63801559be28c718ea06c4738b7a03c94df7386d2cde46"
+
+[[package]]
+name = "hkdf"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b5f8eb2ad728638ea2c7d47a21db23b7b58a72ed6a38256b8a1849f15fbbdf7"
+dependencies = [
+ "hmac",
+]
+
 [[package]]
 name = "hmac"
 version = "0.12.1"
@@ -386,6 +832,15 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "home"
+version = "0.5.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3d1354bf6b7235cb4a0576c2619fd4ed18183f689b12b006a0ee7329eeff9a5"
+dependencies = [
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "http"
 version = "0.2.12"
@@ -420,6 +875,12 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
 
+[[package]]
+name = "humantime"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+
 [[package]]
 name = "hyper"
 version = "0.14.30"
@@ -493,6 +954,12 @@ version = "2.9.0"
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 checksum = "8f518f335dce6725a761382244631d86cf0ccb2863413590b31338feb467f9c3"
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
 [[package]]
 name = "itoa"
 version = "1.0.11"
@@ -508,12 +975,27 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "lazy_static"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
+dependencies = [
+ "spin",
+]
+
 [[package]]
 name = "libc"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
+
 [[package]]
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@@ -539,6 +1021,12 @@ version = "0.4.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
 
+[[package]]
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+checksum = "490cc448043f947bae3cbee9c203358d62dbee0db12107a74be5c30ccfd09771"
+
 [[package]]
 name = "memchr"
 version = "2.7.4"
@@ -560,6 +1048,15 @@ dependencies = [
  "adler",
 ]
 
+[[package]]
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+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2d80299ef12ff69b16a84bb182e3b9df68b5a91574d3d4fa6e41b65deec4df1"
+dependencies = [
+ "adler2",
+]
+
 [[package]]
 name = "mio"
 version = "1.0.2"
@@ -589,6 +1086,64 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "num-bigint"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a5e44f723f1133c9deac646763579fdb3ac745e418f2a7af9cd0c431da1f20b9"
+dependencies = [
+ "num-integer",
+ "num-traits",
+ "rand",
+]
+
+[[package]]
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+checksum = "dc84195820f291c7697304f3cbdadd1cb7199c0efc917ff5eafd71225c136151"
+dependencies = [
+ "byteorder",
+ "lazy_static",
+ "libm",
+ "num-integer",
+ "num-iter",
+ "num-traits",
+ "rand",
+ "smallvec",
+ "zeroize",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+ "libm",
+]
+
 [[package]]
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@@ -604,6 +1159,12 @@ version = "1.19.0"
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 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
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+checksum = "c08d65885ee38876c4f86fa503fb49d7b507c2b62552df7c70b2fce627e06381"
+
 [[package]]
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@@ -648,6 +1209,86 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9863ad85fa8f4460f9c48cb909d38a0d689dba1f6f6988a5e3e0d31071bcd4b"
+dependencies = [
+ "ecdsa",
+ "elliptic-curve",
+ "primeorder",
+ "sha2",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70786f51bcc69f6a4c0360e063a4cac5419ef7c5cd5b3c99ad70f3be5ba79209"
+dependencies = [
+ "ecdsa",
+ "elliptic-curve",
+ "primeorder",
+ "sha2",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fc9e2161f1f215afdfce23677034ae137bbd45016a880c2eb3ba8eb95f085b2"
+dependencies = [
+ "base16ct",
+ "ecdsa",
+ "elliptic-curve",
+ "primeorder",
+ "rand_core",
+ "sha2",
+]
+
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+dependencies = [
+ "base64ct",
+ "rand_core",
+ "subtle",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "83a0692ec44e4cf1ef28ca317f14f8f07da2d95ec3fa01f86e4467b725e60917"
+dependencies = [
+ "digest",
+ "hmac",
+ "password-hash",
+ "sha2",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8ed6a7761f76e3b9f92dfb0a60a6a6477c61024b775147ff0973a02653abaf2"
+dependencies = [
+ "digest",
+ "hmac",
+]
+
+[[package]]
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+checksum = "88b39c9bfcfc231068454382784bb460aae594343fb030d46e9f50a645418412"
+dependencies = [
+ "base64ct",
+]
+
 [[package]]
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 version = "2.3.1"
@@ -666,12 +1307,73 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8ffb9f10fa047879315e6625af03c164b16962a5368d724ed16323b68ace47f"
+dependencies = [
+ "der",
+ "pkcs8",
+ "spki",
+]
+
+[[package]]
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+checksum = "e847e2c91a18bfa887dd028ec33f2fe6f25db77db3619024764914affe8b69a6"
+dependencies = [
+ "aes",
+ "cbc",
+ "der",
+ "pbkdf2 0.12.2",
+ "scrypt",
+ "sha2",
+ "spki",
+]
+
+[[package]]
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+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
+dependencies = [
+ "der",
+ "pkcs5",
+ "rand_core",
+ "spki",
+]
+
 [[package]]
 name = "pkg-config"
 version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
 
+[[package]]
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+checksum = "8159bd90725d2df49889a078b54f4f79e87f1f8a8444194cdca81d38f5393abf"
+dependencies = [
+ "cpufeatures",
+ "opaque-debug",
+ "universal-hash",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d1fe60d06143b2430aa532c94cfe9e29783047f06c0d7fd359a9a51b729fa25"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "opaque-debug",
+ "universal-hash",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.20"
@@ -681,6 +1383,15 @@ dependencies = [
  "zerocopy",
 ]
 
+[[package]]
+name = "primeorder"
+version = "0.13.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "353e1ca18966c16d9deb1c69278edbc5f194139612772bd9537af60ac231e1e6"
+dependencies = [
+ "elliptic-curve",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.86"
@@ -735,6 +1446,35 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "regex"
+version = "1.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4219d74c6b67a3654a9fbebc4b419e22126d13d2f3c4a07ee0cb61ff79a79619"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
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+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38caf58cc5ef2fed281f89292ef23f6365465ed9a41b7a7754eb4e26496c92df"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a66a03ae7c801facd77a29370b4faec201768915ac14a721ba36f20bc9c209b"
+
 [[package]]
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@@ -775,6 +1515,141 @@ dependencies = [
  "winreg",
 ]
 
+[[package]]
+name = "rfc6979"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "hmac",
+ "subtle",
+]
+
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+dependencies = [
+ "const-oid",
+ "digest",
+ "num-bigint-dig",
+ "num-integer",
+ "num-traits",
+ "pkcs1",
+ "pkcs8",
+ "rand_core",
+ "sha2",
+ "signature",
+ "spki",
+ "subtle",
+ "zeroize",
+]
+
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+dependencies = [
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+ "aes-gcm",
+ "async-trait",
+ "bitflags 2.6.0",
+ "byteorder",
+ "cbc",
+ "chacha20",
+ "ctr",
+ "curve25519-dalek",
+ "des",
+ "digest",
+ "elliptic-curve",
+ "flate2",
+ "futures",
+ "generic-array",
+ "hex-literal",
+ "hmac",
+ "log",
+ "num-bigint",
+ "once_cell",
+ "p256",
+ "p384",
+ "p521",
+ "poly1305",
+ "rand",
+ "rand_core",
+ "russh-cryptovec",
+ "russh-keys",
+ "sha1",
+ "sha2",
+ "ssh-encoding",
+ "ssh-key",
+ "subtle",
+ "thiserror",
+ "tokio",
+]
+
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+dependencies = [
+ "libc",
+ "winapi",
+]
+
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+dependencies = [
+ "aes",
+ "async-trait",
+ "bcrypt-pbkdf",
+ "block-padding",
+ "byteorder",
+ "cbc",
+ "ctr",
+ "data-encoding",
+ "der",
+ "digest",
+ "ecdsa",
+ "ed25519-dalek",
+ "elliptic-curve",
+ "futures",
+ "hmac",
+ "home",
+ "inout",
+ "log",
+ "md5",
+ "num-integer",
+ "p256",
+ "p384",
+ "p521",
+ "pbkdf2 0.11.0",
+ "pkcs1",
+ "pkcs5",
+ "pkcs8",
+ "rand",
+ "rand_core",
+ "rsa",
+ "russh-cryptovec",
+ "sec1",
+ "serde",
+ "sha1",
+ "sha2",
+ "spki",
+ "ssh-encoding",
+ "ssh-key",
+ "thiserror",
+ "tokio",
+ "tokio-stream",
+ "typenum",
+ "zeroize",
+]
+
 [[package]]
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 version = "0.1.1"
@@ -796,6 +1671,15 @@ version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
+dependencies = [
+ "semver",
+]
+
 [[package]]
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@@ -824,6 +1708,15 @@ version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97a22f5af31f73a954c10289c93e8a50cc23d971e80ee446f1f6f7137a088213"
+dependencies = [
+ "cipher",
+]
+
 [[package]]
 name = "schannel"
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@@ -833,6 +1726,31 @@ dependencies = [
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 ]
 
+[[package]]
+name = "scrypt"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0516a385866c09368f0b5bcd1caff3366aace790fcd46e2bb032697bb172fd1f"
+dependencies = [
+ "pbkdf2 0.12.2",
+ "salsa20",
+ "sha2",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3e97a565f76233a6003f9f5c54be1d9c5bdfa3eccfb189469f11ec4901c47dc"
+dependencies = [
+ "base16ct",
+ "der",
+ "generic-array",
+ "pkcs8",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
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 version = "2.11.1"
@@ -856,6 +1774,12 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61697e0a1c7e512e84a621326239844a24d8207b4669b41bc18b32ea5cbf988b"
+
 [[package]]
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@@ -900,6 +1824,17 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
 [[package]]
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@@ -917,6 +1852,25 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
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+checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+dependencies = [
+ "libc",
+]
+
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+checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
+dependencies = [
+ "digest",
+ "rand_core",
+]
+
 [[package]]
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@@ -926,6 +1880,12 @@ dependencies = [
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 ]
 
+[[package]]
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+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
+
 [[package]]
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@@ -936,6 +1896,73 @@ dependencies = [
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
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+ "aes",
+ "aes-gcm",
+ "cbc",
+ "chacha20",
+ "cipher",
+ "ctr",
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+ "ssh-encoding",
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+]
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+dependencies = [
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+ "pem-rfc7468",
+ "sha2",
+]
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+version = "0.6.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca9b366a80cf18bb6406f4cf4d10aebfb46140a8c0c33f666a144c5c76ecbafc"
+dependencies = [
+ "bcrypt-pbkdf",
+ "ed25519-dalek",
+ "num-bigint-dig",
+ "p256",
+ "p384",
+ "p521",
+ "rand_core",
+ "rsa",
+ "sec1",
+ "sha2",
+ "signature",
+ "ssh-cipher",
+ "ssh-encoding",
+ "subtle",
+ "zeroize",
+]
+
 [[package]]
 name = "subtle"
 version = "2.6.1"
@@ -1036,19 +2063,32 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.39.3"
+version = "1.40.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9babc99b9923bfa4804bd74722ff02c0381021eafa4db9949217e3be8e84fff5"
+checksum = "e2b070231665d27ad9ec9b8df639893f46727666c6767db40317fbe920a5d998"
 dependencies = [
  "backtrace",
  "bytes",
  "libc",
  "mio",
  "pin-project-lite",
+ "signal-hook-registry",
  "socket2",
+ "tokio-macros",
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "tokio-macros"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tokio-native-tls"
 version = "0.3.1"
@@ -1059,6 +2099,17 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tokio-stream"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f4e6ce100d0eb49a2734f8c0812bcd324cf357d21810932c5df6b96ef2b86f1"
+dependencies = [
+ "futures-core",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-util"
 version = "0.7.11"
@@ -1130,6 +2181,16 @@ dependencies = [
  "tinyvec",
 ]
 
+[[package]]
+name = "universal-hash"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc1de2c688dc15305988b563c3854064043356019f97a4b46276fe734c4f07ea"
+dependencies = [
+ "crypto-common",
+ "subtle",
+]
+
 [[package]]
 name = "url"
 version = "2.5.2"
@@ -1141,6 +2202,12 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"
@@ -1245,6 +2312,28 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
@@ -1432,3 +2521,9 @@ dependencies = [
  "quote",
  "syn",
 ]
+
+[[package]]
+name = "zeroize"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ced3678a2879b30306d323f4542626697a464a97c0a07c9aebf7ebca65cd4dde"
diff --git a/harmony-rs/Cargo.toml b/harmony-rs/Cargo.toml
index 5c34bd9..b4cdbb4 100644
--- a/harmony-rs/Cargo.toml
+++ b/harmony-rs/Cargo.toml
@@ -4,6 +4,14 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+derive-new = "0.7.0"
+env_logger = "0.11.5"
 libredfish = "0.1.1"
+log = "0.4.22"
 reqwest = {version = "0.11", features = ["blocking", "json"] }
+russh = "0.45.0"
 rust-ipmi = "0.1.1"
+semver = "1.0.23"
+serde = { version = "1.0.209", features = ["derive"] }
+serde_json = "1.0.127"
+tokio = { version = "1.40.0", features = ["io-std"] }
diff --git a/harmony-rs/src/domain/cluster/mod.rs b/harmony-rs/src/domain/cluster/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/domain/data/id.rs b/harmony-rs/src/domain/data/id.rs
new file mode 100644
index 0000000..05717b4
--- /dev/null
+++ b/harmony-rs/src/domain/data/id.rs
@@ -0,0 +1,12 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct Id {
+    value: String,
+}
+
+impl Id {
+    pub fn from_string(value: String) -> Self {
+        Self { value }
+    }
+}
diff --git a/harmony-rs/src/domain/data/mod.rs b/harmony-rs/src/domain/data/mod.rs
new file mode 100644
index 0000000..e122b20
--- /dev/null
+++ b/harmony-rs/src/domain/data/mod.rs
@@ -0,0 +1,4 @@
+mod id;
+mod version;
+pub use id::*;
+pub use version::*;
diff --git a/harmony-rs/src/domain/data/version.rs b/harmony-rs/src/domain/data/version.rs
new file mode 100644
index 0000000..c76bd14
--- /dev/null
+++ b/harmony-rs/src/domain/data/version.rs
@@ -0,0 +1,76 @@
+#[derive(Debug, Clone)]
+pub struct Version {
+    value: semver::Version,
+}
+
+#[derive(Debug, Clone)]
+pub struct VersionError {
+    msg: String,
+}
+
+impl From<semver::Error> for VersionError {
+    fn from(value: semver::Error) -> Self {
+        Self {
+            msg: value.to_string(),
+        }
+    }
+}
+
+impl Version {
+    pub fn from(val: &str) -> Result<Self, VersionError> {
+        Ok(Self {
+            value: semver::Version::parse(val)?,
+        })
+    }
+}
+
+impl<'de> serde::Deserialize<'de> for Version {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: serde::Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+        semver::Version::parse(&s)
+            .map(|value| Version { value })
+            .map_err(serde::de::Error::custom)
+    }
+}
+
+impl serde::Serialize for Version {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: serde::Serializer,
+    {
+        self.value.to_string().serialize(serializer)
+    }
+}
+
+impl std::fmt::Display for Version {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        return self.value.fmt(f);
+    }
+}
+
+#[cfg(test)]
+mod test {
+
+    use super::*;
+
+    #[test]
+    fn version_serialize_deserialize() {
+        let v = "10.0.1331-ababa+b123";
+        let version = Version {
+            value: semver::Version::parse(v).unwrap(),
+        };
+
+        let s = serde_json::to_string(&version).unwrap();
+        let version2: Version = serde_json::from_str(&s).unwrap();
+
+        assert_eq!(version2.value.major, 10);
+        assert_eq!(version2.value.minor, 0);
+        assert_eq!(version2.value.patch, 1331);
+        assert_eq!(version2.value.build.to_string(), "b123");
+        assert_eq!(version2.value.pre.to_string(), "ababa");
+        assert_eq!(version2.value.to_string(), v);
+    }
+}
diff --git a/harmony-rs/src/domain/executors/mod.rs b/harmony-rs/src/domain/executors/mod.rs
new file mode 100644
index 0000000..8af236e
--- /dev/null
+++ b/harmony-rs/src/domain/executors/mod.rs
@@ -0,0 +1,30 @@
+use std::fmt;
+
+pub struct ExecutorResult {
+    message: String,
+}
+
+#[derive(Debug)]
+pub enum ExecutorError {
+    NetworkError(String),
+    AuthenticationError(String),
+    ConfigurationError(String),
+    UnexpectedError(String),
+}
+
+impl fmt::Display for ExecutorError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            ExecutorError::NetworkError(msg) => write!(f, "Network error: {}", msg),
+            ExecutorError::AuthenticationError(msg) => write!(f, "Authentication error: {}", msg),
+            ExecutorError::ConfigurationError(msg) => write!(f, "Configuration error: {}", msg),
+            ExecutorError::UnexpectedError(msg) => write!(f, "Unexpected error: {}", msg),
+        }
+    }
+}
+
+impl std::error::Error for ExecutorError {}
+
+pub trait SshClient {
+    fn test_connection(&self, username: String, password: String) -> Result<(), ExecutorError>;
+}
diff --git a/harmony-rs/src/domain/filter.rs b/harmony-rs/src/domain/filter.rs
new file mode 100644
index 0000000..39cd734
--- /dev/null
+++ b/harmony-rs/src/domain/filter.rs
@@ -0,0 +1,15 @@
+use derive_new::new;
+
+#[derive(Debug, Clone)]
+pub enum FilterKind {
+    Label,
+    Kind,
+}
+
+pub type FilterValue = String;
+
+#[derive(Debug, new, Clone)]
+pub struct Filter {
+    kind: FilterKind,
+    value: FilterValue,
+}
diff --git a/harmony-rs/src/domain/hardware/building.rs b/harmony-rs/src/domain/hardware/building.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/domain/hardware/host.rs b/harmony-rs/src/domain/hardware/host.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/domain/hardware/mod.rs b/harmony-rs/src/domain/hardware/mod.rs
new file mode 100644
index 0000000..28e4d8c
--- /dev/null
+++ b/harmony-rs/src/domain/hardware/mod.rs
@@ -0,0 +1,76 @@
+use derive_new::new;
+
+pub type HostGroup = Vec<Host>;
+pub type SwitchGroup = Vec<Switch>;
+pub type FirewallGroup = Vec<Firewall>;
+#[derive(Debug)]
+pub struct Host {
+    pub category: HostCategory,
+    pub network: Vec<NetworkInterface>,
+    pub storage: Vec<Storage>,
+    pub labels: Vec<Label>,
+}
+
+#[derive(Debug)]
+pub enum HostCategory {
+    Server,
+    Firewall,
+    Switch,
+}
+
+#[derive(Debug)]
+pub struct NetworkInterface {
+    speed: u64,
+    mac_address: MacAddress,
+    plugged_in: bool,
+}
+type MacAddress = String;
+#[derive(Debug)]
+pub enum StorageConnectionType {
+    Sata3g,
+    Sata6g,
+    Sas6g,
+    Sas12g,
+    PCIE,
+}
+#[derive(Debug)]
+pub enum StorageKind {
+    SSD,
+    NVME,
+    HDD,
+}
+#[derive(Debug)]
+pub struct Storage {
+    connection: StorageConnectionType,
+    kind: StorageKind,
+    size: u64,
+    serial: String,
+}
+
+#[derive(Debug)]
+pub struct Switch {
+    interface: Vec<NetworkInterface>,
+    management_interface: NetworkInterface,
+}
+
+#[derive(Debug)]
+pub struct Firewall {}
+#[derive(Debug)]
+pub struct Label;
+pub type Address = String;
+
+#[derive(new, Debug)]
+pub struct Location {
+    pub address: Address,
+    pub name: String,
+}
+
+impl Location {
+    #[cfg(test)]
+    pub fn test_building() -> Location {
+        Self {
+            address: String::new(),
+            name: String::new(),
+        }
+    }
+}
diff --git a/harmony-rs/src/domain/hardware/network_cable.rs b/harmony-rs/src/domain/hardware/network_cable.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/domain/hardware/power_cable.rs b/harmony-rs/src/domain/hardware/power_cable.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/domain/hardware/rack.rs b/harmony-rs/src/domain/hardware/rack.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/domain/hardware/switch.rs b/harmony-rs/src/domain/hardware/switch.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/domain/hardware/ups.rs b/harmony-rs/src/domain/hardware/ups.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/domain/interpret/mod.rs b/harmony-rs/src/domain/interpret/mod.rs
new file mode 100644
index 0000000..3d0a6c1
--- /dev/null
+++ b/harmony-rs/src/domain/interpret/mod.rs
@@ -0,0 +1,45 @@
+use super::{
+    data::{Id, Version},
+    inventory::Inventory,
+    score::Score,
+};
+
+pub enum InterpretName {
+    OPNSenseDHCP,
+}
+
+impl std::fmt::Display for InterpretName {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            InterpretName::OPNSenseDHCP => f.write_str("OPNSenseDHCP"),
+        }
+    }
+}
+
+pub trait Interpret {
+    fn execute(&self, inventory: &Inventory) -> Result<Outcome, InterpretError>;
+    fn get_name(&self) -> InterpretName;
+    fn get_version(&self) -> Version;
+    fn get_status(&self) -> InterpretStatus;
+    fn get_children(&self) -> Vec<Id>;
+}
+
+#[derive(Debug)]
+pub struct Outcome {
+    status: InterpretStatus,
+    message: String,
+}
+
+#[derive(Debug, Clone)]
+pub enum InterpretStatus {
+    SUCCESS,
+    FAILURE,
+    RUNNING,
+    QUEUED,
+    BLOCKED,
+}
+
+#[derive(Debug)]
+pub struct InterpretError {
+    msg: String,
+}
diff --git a/harmony-rs/src/domain/inventory/mod.rs b/harmony-rs/src/domain/inventory/mod.rs
new file mode 100644
index 0000000..90e9edb
--- /dev/null
+++ b/harmony-rs/src/domain/inventory/mod.rs
@@ -0,0 +1,40 @@
+#[derive(Debug, new, Clone)]
+pub struct InventoryFilter {
+    target: Vec<Filter>,
+}
+
+pub struct InventorySlice;
+
+impl InventoryFilter {
+    pub fn apply(&self, _inventory: &Inventory) -> InventorySlice {
+        // TODO apply inventory filter, refactor as a slice
+        todo!()
+    }
+}
+
+use derive_new::new;
+
+use super::{
+    filter::Filter,
+    hardware::{Location, FirewallGroup, HostGroup, SwitchGroup},
+};
+
+#[derive(Debug)]
+pub struct Inventory {
+    pub location: Location,
+    pub host: HostGroup,
+    pub switch: SwitchGroup,
+    pub firewall: FirewallGroup,
+}
+
+impl Inventory {
+    #[cfg(test)]
+    pub fn empty_inventory() -> Self {
+        Self {
+            location: Location::test_building(),
+            host: HostGroup::new(),
+            switch: SwitchGroup::new(),
+            firewall: FirewallGroup::new(),
+        }
+    }
+}
diff --git a/harmony-rs/src/domain/maestro/mod.rs b/harmony-rs/src/domain/maestro/mod.rs
new file mode 100644
index 0000000..48b65dc
--- /dev/null
+++ b/harmony-rs/src/domain/maestro/mod.rs
@@ -0,0 +1,38 @@
+use derive_new::new;
+use log::info;
+
+use super::{interpret::Interpret, inventory::Inventory, score::Score};
+
+#[derive(new)]
+pub struct Maestro {
+    inventory: Inventory,
+}
+
+impl Maestro {
+    pub fn start(&mut self) {
+        info!("Starting Maestro");
+        self.load_score();
+        self.load_inventory();
+        self.launch_interprets();
+    }
+
+    fn load_score(&mut self) {
+        todo!()
+    }
+
+    fn load_inventory(&mut self) {
+        todo!()
+    }
+
+    fn launch_interprets(&mut self) {
+        todo!()
+    }
+
+    pub fn interpret<S: Score>(&self, score: S) {
+        info!("Running score {score:?}");
+        let interpret: S::InterpretType = score.create_interpret();
+        info!("Launching interpret {interpret:?}");
+        let result = interpret.execute(&self.inventory);
+        info!("Got result {result:?}");
+    }
+}
diff --git a/harmony-rs/src/domain/mod.rs b/harmony-rs/src/domain/mod.rs
new file mode 100644
index 0000000..ece55ef
--- /dev/null
+++ b/harmony-rs/src/domain/mod.rs
@@ -0,0 +1,9 @@
+pub mod data;
+pub mod executors;
+pub mod filter;
+pub mod hardware;
+pub mod interpret;
+pub mod inventory;
+pub mod maestro;
+pub mod score;
+pub mod topology;
diff --git a/harmony-rs/src/domain/score.rs b/harmony-rs/src/domain/score.rs
new file mode 100644
index 0000000..4ca10ae
--- /dev/null
+++ b/harmony-rs/src/domain/score.rs
@@ -0,0 +1,7 @@
+use super::{interpret::Interpret, inventory::InventorySlice};
+
+pub trait Score: Send + Sync + std::fmt::Debug {
+    type InterpretType: Interpret + std::fmt::Debug;
+    fn get_inventory_filter(&self) -> InventorySlice;
+    fn create_interpret(self) -> Self::InterpretType;
+}
diff --git a/harmony-rs/src/domain/topology/mod.rs b/harmony-rs/src/domain/topology/mod.rs
new file mode 100644
index 0000000..a8013b1
--- /dev/null
+++ b/harmony-rs/src/domain/topology/mod.rs
@@ -0,0 +1,13 @@
+use std::net::IpAddr;
+
+use super::hardware::HostGroup;
+
+pub struct OKDHACluster {
+    firewall: HostGroup,
+    control_plane: HostGroup,
+    workers: HostGroup,
+    ceph_hosts: HostGroup,
+    switch: HostGroup,
+}
+
+pub struct IpAddress(IpAddr);
diff --git a/harmony-rs/src/infra/executors/ansible/opnsense_dhcp_configuration.rs b/harmony-rs/src/infra/executors/ansible/opnsense_dhcp_configuration.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/infra/executors/boot/mod.rs b/harmony-rs/src/infra/executors/boot/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/infra/executors/mod.rs b/harmony-rs/src/infra/executors/mod.rs
new file mode 100644
index 0000000..bcad313
--- /dev/null
+++ b/harmony-rs/src/infra/executors/mod.rs
@@ -0,0 +1,2 @@
+pub mod russh;
+
diff --git a/harmony-rs/src/infra/executors/power/mod.rs b/harmony-rs/src/infra/executors/power/mod.rs
new file mode 100644
index 0000000..e69de29
diff --git a/harmony-rs/src/infra/executors/russh/mod.rs b/harmony-rs/src/infra/executors/russh/mod.rs
new file mode 100644
index 0000000..67a2577
--- /dev/null
+++ b/harmony-rs/src/infra/executors/russh/mod.rs
@@ -0,0 +1,104 @@
+use std::{net::ToSocketAddrs, path::Path, sync::Arc, time::Duration};
+
+use russh::{client, keys::{key, load_secret_key}, ChannelMsg, Disconnect};
+use tokio::io::AsyncWriteExt;
+
+use crate::domain::executors::SshClient;
+
+pub struct RusshClient;
+
+impl SshClient for RusshClient {
+    fn test_connection(&self, username: String, password: String) -> Result<(), crate::domain::executors::ExecutorError> {
+        todo!()
+        //Session::connect();
+
+    }
+}
+
+struct Client {}
+
+// More SSH event handlers
+// can be defined in this trait
+// In this example, we're only using Channel, so these aren't needed.
+#[async_trait]
+impl client::Handler for Client {
+    type Error = russh::Error;
+
+    async fn check_server_key(
+        &mut self,
+        _server_public_key: &key::PublicKey,
+    ) -> Result<bool, Self::Error> {
+        Ok(true)
+    }
+}
+
+
+/// This struct is a convenience wrapper
+/// around a russh client
+pub struct Session {
+    session: client::Handle<Client>,
+}
+
+impl Session {
+    async fn connect<P: AsRef<Path>, A: ToSocketAddrs>(
+        key_path: P,
+        user: impl Into<String>,
+        addrs: A,
+    ) -> Result<Self, String> {
+        let key_pair = load_secret_key(key_path, None)?;
+        let config = client::Config {
+            inactivity_timeout: Some(Duration::from_secs(5)),
+            ..<_>::default()
+        };
+
+        let config = Arc::new(config);
+        let sh = Client {};
+
+        let mut session = client::connect(config, addrs, sh).await?;
+        let auth_res = session
+            .authenticate_publickey(user, Arc::new(key_pair))
+            .await?;
+
+        if !auth_res {
+            Err("Authentication failed")
+        }
+
+        Ok(Self { session })
+    }
+
+    async fn call(&mut self, command: &str) -> Result<u32> {
+        let mut channel = self.session.channel_open_session().await?;
+        channel.exec(true, command).await?;
+
+        let mut code = None;
+        let mut stdout = tokio::io::stdout();
+
+        loop {
+            // There's an event available on the session channel
+            let Some(msg) = channel.wait().await else {
+                break;
+            };
+            match msg {
+                // Write data to the terminal
+                ChannelMsg::Data { ref data } => {
+                    stdout.write_all(data).await?;
+                    stdout.flush().await?;
+                }
+                // The command has returned an exit code
+                ChannelMsg::ExitStatus { exit_status } => {
+                    code = Some(exit_status);
+                    // cannot leave the loop immediately, there might still be more data to receive
+                }
+                _ => {}
+            }
+        }
+        Ok(code.expect("program did not exit cleanly"))
+    }
+
+    async fn close(&mut self) -> Result<()> {
+        self.session
+            .disconnect(Disconnect::ByApplication, "", "English")
+            .await?;
+        Ok(())
+    }
+}
diff --git a/harmony-rs/src/infra/inventory/fqm.rs b/harmony-rs/src/infra/inventory/fqm.rs
new file mode 100644
index 0000000..cd9bf0e
--- /dev/null
+++ b/harmony-rs/src/infra/inventory/fqm.rs
@@ -0,0 +1,21 @@
+use crate::domain::{
+    hardware::{Location, Host, HostCategory},
+    inventory::Inventory,
+};
+
+pub fn get_fqm_inventory() -> Inventory {
+    Inventory {
+        location: Location::new(
+            "1134 Grande Allée Ouest 1er étage, Québec, Qc".into(),
+            "FQM 1134 1er étage".into(),
+        ),
+        host: vec![Host {
+            category: HostCategory::Server,
+            network: vec![],
+            storage: vec![],
+            labels: vec![],
+        }],
+        switch: vec![],
+        firewall: vec![],
+    }
+}
diff --git a/harmony-rs/src/infra/inventory/mod.rs b/harmony-rs/src/infra/inventory/mod.rs
new file mode 100644
index 0000000..1e8da7e
--- /dev/null
+++ b/harmony-rs/src/infra/inventory/mod.rs
@@ -0,0 +1 @@
+pub mod fqm;
diff --git a/harmony-rs/src/infra/mod.rs b/harmony-rs/src/infra/mod.rs
new file mode 100644
index 0000000..ed4e230
--- /dev/null
+++ b/harmony-rs/src/infra/mod.rs
@@ -0,0 +1,2 @@
+pub mod inventory;
+pub mod executors;
diff --git a/harmony-rs/src/lib.rs b/harmony-rs/src/lib.rs
new file mode 100644
index 0000000..8c3d0f6
--- /dev/null
+++ b/harmony-rs/src/lib.rs
@@ -0,0 +1,3 @@
+pub mod domain;
+pub mod infra;
+pub mod modules;
diff --git a/harmony-rs/src/main.rs b/harmony-rs/src/main.rs
index a6e9bd5..7dd3100 100644
--- a/harmony-rs/src/main.rs
+++ b/harmony-rs/src/main.rs
@@ -1,20 +1,19 @@
-use libredfish::{Config, Redfish};
-use reqwest::blocking::Client;
+use harmony_rs::{
+    domain::{
+        inventory::{Inventory, InventoryFilter},
+        maestro::Maestro,
+    },
+    infra::inventory::fqm::get_fqm_inventory, modules::opnsense_dhcp::OPNSenseDhcpScore,
+};
 
 pub fn main() {
-    let client = Client::builder().danger_accept_invalid_certs(true).build().expect("Failed to build reqwest client");
-    let redfish = Redfish::new(
-        client,
-        Config {
-            user: Some(String::from("Administrator")),
-            endpoint: String::from("10.10.8.104/redfish/v1"),
-            // password: Some(String::from("YOUR_PASSWORD")),
-            password: Some(String::from("wrongpass")),
-            port: None,
-        },
-    );
+    env_logger::init();
 
-    let response = redfish.get_power_status().expect("Failed redfish request");
-
-    println!("Got power {:?}", response);
+    let maestro = Maestro::new(get_inventory());
+    let score = OPNSenseDhcpScore::new(InventoryFilter::new(vec![]));
+    maestro.interpret(score);
+}
+
+fn get_inventory() -> Inventory {
+    get_fqm_inventory()
 }
diff --git a/harmony-rs/src/main_redfish.rs b/harmony-rs/src/main_redfish.rs
new file mode 100644
index 0000000..a6e9bd5
--- /dev/null
+++ b/harmony-rs/src/main_redfish.rs
@@ -0,0 +1,20 @@
+use libredfish::{Config, Redfish};
+use reqwest::blocking::Client;
+
+pub fn main() {
+    let client = Client::builder().danger_accept_invalid_certs(true).build().expect("Failed to build reqwest client");
+    let redfish = Redfish::new(
+        client,
+        Config {
+            user: Some(String::from("Administrator")),
+            endpoint: String::from("10.10.8.104/redfish/v1"),
+            // password: Some(String::from("YOUR_PASSWORD")),
+            password: Some(String::from("wrongpass")),
+            port: None,
+        },
+    );
+
+    let response = redfish.get_power_status().expect("Failed redfish request");
+
+    println!("Got power {:?}", response);
+}
diff --git a/harmony-rs/src/modules/mod.rs b/harmony-rs/src/modules/mod.rs
new file mode 100644
index 0000000..f47d64a
--- /dev/null
+++ b/harmony-rs/src/modules/mod.rs
@@ -0,0 +1 @@
+pub mod opnsense_dhcp;
diff --git a/harmony-rs/src/modules/opnsense_dhcp.rs b/harmony-rs/src/modules/opnsense_dhcp.rs
new file mode 100644
index 0000000..a120a55
--- /dev/null
+++ b/harmony-rs/src/modules/opnsense_dhcp.rs
@@ -0,0 +1,119 @@
+use derive_new::new;
+use log::info;
+
+use crate::{domain::{
+    data::{Id, Version}, executors::SshClient, hardware::NetworkInterface, interpret::{InterpretError, InterpretStatus, Outcome}, inventory::Inventory, topology::IpAddress
+}, infra::executors::russh::RusshClient};
+
+use crate::domain::{
+    interpret::Interpret, interpret::InterpretName, inventory::InventoryFilter,
+    inventory::InventorySlice, score::Score,
+};
+
+use crate::domain::executors::{ExecutorError, ExecutorResult};
+#[derive(Debug, new)]
+pub struct OPNSenseDhcpScore {
+    inventory_filter: InventoryFilter,
+}
+
+impl Score for OPNSenseDhcpScore {
+    type InterpretType = OPNSenseDhcpInterpret;
+
+    fn get_inventory_filter(&self) -> InventorySlice {
+        todo!()
+    }
+
+    fn create_interpret(self) -> OPNSenseDhcpInterpret {
+        OPNSenseDhcpInterpret::new(self)
+    }
+}
+
+/// https://docs.opnsense.org/manual/dhcp.html#advanced-settings
+#[derive(Debug)]
+pub struct OPNSenseDhcpInterpret {
+    score: OPNSenseDhcpScore,
+    version: Version,
+    id: Id,
+    name: String,
+    status: InterpretStatus,
+}
+
+impl OPNSenseDhcpInterpret {
+    pub fn new(score: OPNSenseDhcpScore) -> Self {
+        let version = Version::from("1.0.0").expect("Version should be valid");
+        let name = "OPNSenseDhcpScore".to_string();
+        let id = Id::from_string(format!("{name}_{version}"));
+
+        Self {
+            version,
+            id,
+            name,
+            score,
+            status: InterpretStatus::QUEUED,
+        }
+    }
+}
+
+impl Interpret for OPNSenseDhcpInterpret {
+    fn get_name(&self) -> InterpretName {
+        InterpretName::OPNSenseDHCP
+    }
+
+    fn get_version(&self) -> crate::domain::data::Version {
+        self.version.clone()
+    }
+
+    fn get_status(&self) -> InterpretStatus {
+        self.status.clone()
+    }
+
+    fn get_children(&self) -> Vec<crate::domain::data::Id> {
+        todo!()
+    }
+
+    fn execute(&self, _inventory: &Inventory) -> Result<Outcome, InterpretError> {
+        info!("Executing {} on inventory {_inventory:?}", self.get_name());
+        let ssh_client = RusshClient{};
+        // ssh_client.test_connection("username", "password");
+        todo!()
+    }
+}
+
+pub trait OPNSenseDhcpConfigEditor {
+    fn add_static_host(
+        &self,
+        opnsense_host: IpAddress,
+        credentials: OPNSenseCredentials,
+        interface: NetworkInterface,
+        address: IpAddress,
+    ) -> Result<ExecutorResult, ExecutorError>;
+}
+
+pub struct OPNSenseCredentials {
+    pub user: String,
+    pub password: String,
+}
+
+#[cfg(test)]
+mod test {
+
+    #[test]
+    fn opnsense_dns_score_should_do_nothing_on_empty_inventory() {
+        todo!();
+    }
+
+    #[test]
+    fn opnsense_dns_score_should_set_entry_for_bootstrap_node() {
+        todo!();
+    }
+
+    #[test]
+    fn opnsense_dns_score_should_set_entry_for_control_plane_members() {
+        todo!();
+    }
+
+    #[test]
+    fn opnsense_dns_score_should_set_entry_for_workers() {
+        todo!();
+    }
+}