diff --git a/Cargo.lock b/Cargo.lock
index a092d5b..d578330 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -68,23 +68,24 @@ dependencies = [
 
 [[package]]
 name = "anstream"
-version = "0.6.5"
+version = "0.6.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d664a92ecae85fd0a7392615844904654d1d5f5514837f471ddef4a057aba1b6"
+checksum = "64e15c1ab1f89faffbf04a634d5e1962e9074f2741eef6d97f3c4e322426d526"
 dependencies = [
  "anstyle",
  "anstyle-parse",
  "anstyle-query",
  "anstyle-wincon",
  "colorchoice",
+ "is_terminal_polyfill",
  "utf8parse",
 ]
 
 [[package]]
 name = "anstyle"
-version = "1.0.4"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7079075b41f533b8c61d2a4d073c4676e1f8b249ff94a393b0595db304e0dd87"
+checksum = "1bec1de6f59aedf83baf9ff929c98f2ad654b97c9510f4e70cf6f661d49fd5b1"
 
 [[package]]
 name = "anstyle-parse"
@@ -126,6 +127,15 @@ version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
 
+[[package]]
+name = "ascii-canvas"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8824ecca2e851cec16968d54a01dd372ef8f95b244fb84b84e70128be347c3c6"
+dependencies = [
+ "term",
+]
+
 [[package]]
 name = "async-channel"
 version = "1.9.0"
@@ -190,7 +200,7 @@ dependencies = [
  "cfg-if",
  "concurrent-queue",
  "futures-lite 1.13.0",
- "log 0.4.20",
+ "log 0.4.22",
  "parking",
  "polling 2.8.0",
  "rustix 0.37.27",
@@ -255,7 +265,7 @@ dependencies = [
  "futures-lite 1.13.0",
  "gloo-timers",
  "kv-log-macro",
- "log 0.4.20",
+ "log 0.4.22",
  "memchr",
  "once_cell",
  "pin-project-lite",
@@ -290,6 +300,15 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "atomic-polyfill"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8cf2bce30dfe09ef0bfaef228b9d414faaf7e563035494d7fe092dba54b300f4"
+dependencies = [
+ "critical-section",
+]
+
 [[package]]
 name = "atomic-waker"
 version = "1.1.2"
@@ -313,7 +332,7 @@ dependencies = [
  "base64ct",
  "clap",
  "cool_asserts",
- "serde 1.0.193",
+ "serde 1.0.204",
  "sha2",
  "sqlx",
  "thiserror",
@@ -396,7 +415,7 @@ dependencies = [
  "cortex-m",
  "cortex-m-rt",
  "embedded-alloc",
- "embedded-hal",
+ "embedded-hal 0.2.7",
  "fixed",
  "fugit",
  "lights-core",
@@ -443,7 +462,7 @@ version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "327762f6e5a765692301e5bb513e0d9fef63be86bbc14528052b1cd3e6f03e07"
 dependencies = [
- "serde 1.0.193",
+ "serde 1.0.204",
 ]
 
 [[package]]
@@ -491,9 +510,9 @@ checksum = "374d28ec25809ee0e23827c2ab573d729e293f281dfe393500e7ad618baa61c6"
 
 [[package]]
 name = "byteorder"
-version = "1.4.3"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "bytes"
@@ -568,7 +587,7 @@ dependencies = [
  "iana-time-zone",
  "js-sys",
  "num-traits",
- "serde 1.0.193",
+ "serde 1.0.204",
  "wasm-bindgen",
  "windows-targets 0.48.5",
 ]
@@ -582,7 +601,7 @@ dependencies = [
  "chrono",
  "chrono-tz-build",
  "phf 0.11.2",
- "serde 1.0.193",
+ "serde 1.0.204",
 ]
 
 [[package]]
@@ -615,7 +634,7 @@ dependencies = [
  "anstream",
  "anstyle",
  "clap_lex",
- "strsim",
+ "strsim 0.10.0",
 ]
 
 [[package]]
@@ -645,6 +664,16 @@ dependencies = [
  "bitflags 1.3.2",
 ]
 
+[[package]]
+name = "codespan-reporting"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3538270d33cc669650c4b093848450d380def10c331d38c768e34cac80576e6e"
+dependencies = [
+ "termcolor",
+ "unicode-width",
+]
+
 [[package]]
 name = "color_quant"
 version = "1.1.0"
@@ -672,7 +701,7 @@ version = "0.1.0"
 dependencies = [
  "config-derive",
  "cool_asserts",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "thiserror",
 ]
@@ -743,7 +772,7 @@ checksum = "8ec610d8f49840a5b376c69663b6369e71f4b34484b9b2eb29fb918d92516cb9"
 dependencies = [
  "bare-metal",
  "bitfield",
- "embedded-hal",
+ "embedded-hal 0.2.7",
  "volatile-register",
 ]
 
@@ -883,6 +912,41 @@ dependencies = [
  "gtk4",
 ]
 
+[[package]]
+name = "darling"
+version = "0.20.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f63b86c8a8826a49b8c21f08a2d07338eec8d900540f8630dc76284be802989"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.20.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95133861a8032aaea082871032f5815eb9e98cef03fa916ab4500513994df9e5"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim 0.11.1",
+ "syn 2.0.48",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.20.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d336a2a514f6ccccaa3e09b02d41d35330c07ddf03a62165fcec10bb561c7806"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn 2.0.48",
+]
+
 [[package]]
 name = "dashboard"
 version = "0.1.2"
@@ -903,7 +967,7 @@ dependencies = [
  "libadwaita",
  "memorycache",
  "reqwest",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_derive",
  "serde_json",
  "tokio",
@@ -932,6 +996,48 @@ dependencies = [
  "byteorder",
 ]
 
+[[package]]
+name = "defmt"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a99dd22262668b887121d4672af5a64b238f026099f1a2a1b322066c9ecfe9e0"
+dependencies = [
+ "bitflags 1.3.2",
+ "defmt-macros",
+]
+
+[[package]]
+name = "defmt-macros"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3a9f309eff1f79b3ebdf252954d90ae440599c26c2c553fe87a2d17195f2dcb"
+dependencies = [
+ "defmt-parser",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.48",
+]
+
+[[package]]
+name = "defmt-parser"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff4a5fefe330e8d7f31b16a318f9ce81000d8e35e69b93eae154d16d2278f70f"
+dependencies = [
+ "thiserror",
+]
+
+[[package]]
+name = "defmt-rtt"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bab697b3dbbc1750b7c8b821aa6f6e7f2480b47a99bc057a2ed7b170ebef0c51"
+dependencies = [
+ "critical-section",
+ "defmt",
+]
+
 [[package]]
 name = "der"
 version = "0.7.8"
@@ -952,6 +1058,12 @@ dependencies = [
  "powerfmt",
 ]
 
+[[package]]
+name = "diff"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56254986775e3233ffa9c4d7d3faaf6d36a2c09d30b20687e9f88bc8bafc16c8"
+
 [[package]]
 name = "digest"
 version = "0.10.7"
@@ -972,7 +1084,7 @@ checksum = "2517b0555262aeeda0d107a40ecfbbcf185921180ffb4acf316ebe0887467e26"
 dependencies = [
  "generic-array 0.11.2",
  "num-traits",
- "serde 1.0.193",
+ "serde 1.0.204",
  "typenum",
 ]
 
@@ -984,10 +1096,31 @@ checksum = "a0b0a86c5d31c93238ff4b694fa31f3acdf67440770dc314c57d90e433914397"
 dependencies = [
  "generic-array 0.14.7",
  "num-traits",
- "serde 1.0.193",
+ "serde 1.0.204",
  "typenum",
 ]
 
+[[package]]
+name = "dirs-next"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b98cf8ebf19c3d1b223e151f99a4f9f0690dca41414773390fc824184ac833e1"
+dependencies = [
+ "cfg-if",
+ "dirs-sys-next",
+]
+
+[[package]]
+name = "dirs-sys-next"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ebda144c4fe02d1f7ea1a7d9641b6fc6b580adcfa024ae48797ecdeb6825b4d"
+dependencies = [
+ "libc",
+ "redox_users",
+ "winapi",
+]
+
 [[package]]
 name = "displaydoc"
 version = "0.2.4"
@@ -999,6 +1132,15 @@ dependencies = [
  "syn 2.0.48",
 ]
 
+[[package]]
+name = "document-features"
+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb6969eaabd2421f8a2775cfd2471a2b634372b4a25d41e3bd647b79912850a0"
+dependencies = [
+ "litrs",
+]
+
 [[package]]
 name = "dotenvy"
 version = "0.15.7"
@@ -1011,7 +1153,178 @@ version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
 dependencies = [
- "serde 1.0.193",
+ "serde 1.0.204",
+]
+
+[[package]]
+name = "embassy-embedded-hal"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eca4a9380d03e61063067b8239f67d2fa9f108ede7c46b4273804f6b79e59a1d"
+dependencies = [
+ "defmt",
+ "embassy-futures",
+ "embassy-sync 0.5.0",
+ "embassy-time",
+ "embedded-hal 0.2.7",
+ "embedded-hal 1.0.0",
+ "embedded-hal-async",
+ "embedded-storage",
+ "embedded-storage-async",
+ "nb 1.1.0",
+]
+
+[[package]]
+name = "embassy-executor"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec648daedd2143466eff4b3e8002024f9f6c1de4ab7666bb679688752624c925"
+dependencies = [
+ "cortex-m",
+ "critical-section",
+ "defmt",
+ "document-features",
+ "embassy-executor-macros",
+ "embassy-time-driver",
+ "embassy-time-queue-driver",
+]
+
+[[package]]
+name = "embassy-executor-macros"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad454accf80050e9cf7a51e994132ba0e56286b31f9317b68703897c328c59b5"
+dependencies = [
+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.48",
+]
+
+[[package]]
+name = "embassy-futures"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f878075b9794c1e4ac788c95b728f26aa6366d32eeb10c7051389f898f7d067"
+
+[[package]]
+name = "embassy-hal-internal"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0ec47cf8bab914018d4bd2b4f0aaeb46e4f52ab1e7985df88aeef2c6eda5aed"
+dependencies = [
+ "cortex-m",
+ "critical-section",
+ "defmt",
+ "num-traits",
+]
+
+[[package]]
+name = "embassy-rp"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "438f170cbd97d4a870e8d57e1738ee815255028ad31dd409d891e2bf797dc531"
+dependencies = [
+ "atomic-polyfill",
+ "cfg-if",
+ "cortex-m",
+ "cortex-m-rt",
+ "critical-section",
+ "defmt",
+ "document-features",
+ "embassy-embedded-hal",
+ "embassy-futures",
+ "embassy-hal-internal",
+ "embassy-sync 0.5.0",
+ "embassy-time",
+ "embassy-time-driver",
+ "embassy-usb-driver",
+ "embedded-hal 0.2.7",
+ "embedded-hal 1.0.0",
+ "embedded-hal-async",
+ "embedded-hal-nb",
+ "embedded-io",
+ "embedded-io-async",
+ "embedded-storage",
+ "embedded-storage-async",
+ "fixed",
+ "futures",
+ "nb 1.1.0",
+ "pio",
+ "pio-proc",
+ "rand_core 0.6.4",
+ "rp-pac",
+ "rp2040-boot2",
+]
+
+[[package]]
+name = "embassy-sync"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd938f25c0798db4280fcd8026bf4c2f48789aebf8f77b6e5cf8a7693ba114ec"
+dependencies = [
+ "cfg-if",
+ "critical-section",
+ "embedded-io-async",
+ "futures-util",
+ "heapless",
+]
+
+[[package]]
+name = "embassy-sync"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b3e0c49ff02ebe324faf3a8653ba91582e2d0a7fdef5bc88f449d5aa1bfcc05c"
+dependencies = [
+ "cfg-if",
+ "critical-section",
+ "defmt",
+ "embedded-io-async",
+ "futures-util",
+ "heapless",
+]
+
+[[package]]
+name = "embassy-time"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "274c019608a9004aed3cafc871e2a3c87ce9351d537dcaab4cc5db184d4a04b1"
+dependencies = [
+ "cfg-if",
+ "critical-section",
+ "defmt",
+ "document-features",
+ "embassy-time-driver",
+ "embassy-time-queue-driver",
+ "embedded-hal 0.2.7",
+ "embedded-hal 1.0.0",
+ "embedded-hal-async",
+ "futures-util",
+ "heapless",
+]
+
+[[package]]
+name = "embassy-time-driver"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6e0c214077aaa9206958b16411c157961fb7990d4ea628120a78d1a5a28aed24"
+dependencies = [
+ "document-features",
+]
+
+[[package]]
+name = "embassy-time-queue-driver"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1177859559ebf42cd24ae7ba8fe6ee707489b01d0bf471f8827b7b12dcb0bc0"
+
+[[package]]
+name = "embassy-usb-driver"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fc247028eae04174b6635104a35b1ed336aabef4654f5e87a8f32327d231970"
+dependencies = [
+ "defmt",
 ]
 
 [[package]]
@@ -1043,6 +1356,61 @@ dependencies = [
  "void",
 ]
 
+[[package]]
+name = "embedded-hal"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "361a90feb7004eca4019fb28352a9465666b24f840f5c3cddf0ff13920590b89"
+
+[[package]]
+name = "embedded-hal-async"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c4c685bbef7fe13c3c6dd4da26841ed3980ef33e841cddfa15ce8a8fb3f1884"
+dependencies = [
+ "embedded-hal 1.0.0",
+]
+
+[[package]]
+name = "embedded-hal-nb"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fba4268c14288c828995299e59b12babdbe170f6c6d73731af1b4648142e8605"
+dependencies = [
+ "embedded-hal 1.0.0",
+ "nb 1.1.0",
+]
+
+[[package]]
+name = "embedded-io"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "edd0f118536f44f5ccd48bcb8b111bdc3de888b58c74639dfb034a357d0f206d"
+
+[[package]]
+name = "embedded-io-async"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ff09972d4073aa8c299395be75161d582e7629cd663171d62af73c8d50dba3f"
+dependencies = [
+ "embedded-io",
+]
+
+[[package]]
+name = "embedded-storage"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a21dea9854beb860f3062d10228ce9b976da520a73474aed3171ec276bc0c032"
+
+[[package]]
+name = "embedded-storage-async"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1763775e2323b7d5f0aa6090657f5e21cfa02ede71f5dc40eead06d64dcd15cc"
+dependencies = [
+ "embedded-storage",
+]
+
 [[package]]
 name = "emseries"
 version = "0.6.0"
@@ -1050,7 +1418,7 @@ dependencies = [
  "chrono",
  "chrono-tz",
  "dimensioned 0.7.0",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_derive",
  "serde_json",
  "tempfile",
@@ -1058,6 +1426,15 @@ dependencies = [
  "uuid 0.8.2",
 ]
 
+[[package]]
+name = "ena"
+version = "0.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d248bdd43ce613d87415282f69b9bb99d947d290b10962dd6c56233312c2ad5"
+dependencies = [
+ "log 0.4.22",
+]
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.33"
@@ -1075,7 +1452,7 @@ checksum = "95b3f3e67048839cb0d0781f445682a35113da7121f7c949db0e2be96a4fbece"
 dependencies = [
  "humantime",
  "is-terminal",
- "log 0.4.20",
+ "log 0.4.22",
  "regex",
  "termcolor",
 ]
@@ -1200,12 +1577,12 @@ dependencies = [
  "hex-string",
  "http 0.2.11",
  "image 0.23.14",
- "log 0.4.20",
+ "log 0.4.22",
  "logger",
  "mime 0.3.17",
  "mime_guess 2.0.4",
  "pretty_env_logger",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "sha2",
  "tempdir",
@@ -1254,6 +1631,12 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "fixedbitset"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"
+
 [[package]]
 name = "flate2"
 version = "1.0.28"
@@ -1406,7 +1789,7 @@ dependencies = [
  "chrono-tz",
  "dimensioned 0.8.0",
  "emseries",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "tempfile",
 ]
@@ -1800,7 +2183,7 @@ dependencies = [
  "glib-build-tools 0.16.3",
  "gtk4",
  "libadwaita",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "tokio",
 ]
@@ -1961,6 +2344,15 @@ dependencies = [
  "crunchy",
 ]
 
+[[package]]
+name = "hash32"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47d60b12902ba28e2730cd37e95b8c9223af2808df9e902d4df49588d1470606"
+dependencies = [
+ "byteorder",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.14.3"
@@ -2004,6 +2396,16 @@ dependencies = [
  "http 0.2.11",
 ]
 
+[[package]]
+name = "heapless"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0bfb9eb618601c89945a70e254898da93b13be0388091d42117462b265bb3fad"
+dependencies = [
+ "hash32",
+ "stable_deref_trait",
+]
+
 [[package]]
 name = "heck"
 version = "0.4.1"
@@ -2211,6 +2613,12 @@ dependencies = [
  "libadwaita",
 ]
 
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
 [[package]]
 name = "idna"
 version = "0.1.5"
@@ -2237,7 +2645,7 @@ name = "ifc"
 version = "0.1.0"
 dependencies = [
  "chrono",
- "serde 1.0.193",
+ "serde 1.0.204",
  "thiserror",
 ]
 
@@ -2367,6 +2775,12 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
 [[package]]
 name = "itertools"
 version = "0.10.5"
@@ -2424,7 +2838,38 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
 dependencies = [
- "log 0.4.20",
+ "log 0.4.22",
+]
+
+[[package]]
+name = "lalrpop"
+version = "0.19.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a1cbf952127589f2851ab2046af368fd20645491bb4b376f04b7f94d7a9837b"
+dependencies = [
+ "ascii-canvas",
+ "bit-set",
+ "diff",
+ "ena",
+ "is-terminal",
+ "itertools 0.10.5",
+ "lalrpop-util",
+ "petgraph",
+ "regex",
+ "regex-syntax 0.6.29",
+ "string_cache",
+ "term",
+ "tiny-keccak",
+ "unicode-xid",
+]
+
+[[package]]
+name = "lalrpop-util"
+version = "0.19.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3c48237b9604c5a4702de6b824e02006c3214327564636aef27c1028a8fa0ed"
+dependencies = [
+ "regex",
 ]
 
 [[package]]
@@ -2492,6 +2937,16 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec2a862134d2a7d32d7983ddcdd1c4923530833c9f2ea1a44fc5fa473989058"
 
+[[package]]
+name = "libredox"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
+dependencies = [
+ "bitflags 2.4.1",
+ "libc",
+]
+
 [[package]]
 name = "libsqlite3-sys"
 version = "0.27.0"
@@ -2529,6 +2984,12 @@ version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4cd1a83af159aa67994778be9070f0ae1bd732942279cabb14f86f986a21456"
 
+[[package]]
+name = "litrs"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4ce301924b7887e9d637144fdade93f9dfff9b60981d4ac161db09720d39aa5"
+
 [[package]]
 name = "lock_api"
 version = "0.4.11"
@@ -2545,14 +3006,14 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
 dependencies = [
- "log 0.4.20",
+ "log 0.4.22",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.20"
+version = "0.4.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
+checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
 dependencies = [
  "value-bag",
 ]
@@ -2605,7 +3066,7 @@ version = "0.1.0"
 dependencies = [
  "chrono",
  "futures",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_derive",
  "tokio",
 ]
@@ -2710,7 +3171,7 @@ dependencies = [
  "futures-util",
  "http 0.2.11",
  "httparse",
- "log 0.4.20",
+ "log 0.4.22",
  "memchr",
  "mime 0.3.17",
  "spin 0.9.8",
@@ -2735,7 +3196,7 @@ checksum = "07226173c32f2926027b63cce4bcd8076c3552846cbe7925f3aaffeac0a3b92e"
 dependencies = [
  "lazy_static",
  "libc",
- "log 0.4.20",
+ "log 0.4.22",
  "openssl",
  "openssl-probe",
  "openssl-sys",
@@ -2760,6 +3221,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d5439c4ad607c3c23abf66de8c8bf57ba8adcd1f129e699851a6e43935d339d"
 
+[[package]]
+name = "new_debug_unreachable"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "650eef8c711430f1a879fdd01d4745a7deea475becfb90269c06775983bbf086"
+
 [[package]]
 name = "nix"
 version = "0.27.1"
@@ -2965,7 +3432,7 @@ dependencies = [
  "cool_asserts",
  "grid",
  "nary_tree",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "sgf",
  "thiserror",
@@ -3023,6 +3490,16 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "de96540e0ebde571dc55c73d60ef407c653844e6f9a1e2fdbd40c07b9252d812"
 
+[[package]]
+name = "panic-probe"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4047d9235d1423d66cc97da7d07eddb54d4f154d6c13805c6d0793956f4f25b0"
+dependencies = [
+ "cortex-m",
+ "defmt",
+]
+
 [[package]]
 name = "parking"
 version = "2.2.0"
@@ -3088,6 +3565,16 @@ version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
+[[package]]
+name = "petgraph"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4c5cc86750666a3ed20bdaf5ca2a0344f9c67674cae0515bec2da16fbaa47db"
+dependencies = [
+ "fixedbitset",
+ "indexmap",
+]
+
 [[package]]
 name = "phf"
 version = "0.7.24"
@@ -3156,6 +3643,15 @@ dependencies = [
  "unicase 1.4.2",
 ]
 
+[[package]]
+name = "phf_shared"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6796ad771acdc0123d2a88dc428b5e38ef24456743ddb1744ed628f9815c096"
+dependencies = [
+ "siphasher 0.3.11",
+]
+
 [[package]]
 name = "phf_shared"
 version = "0.11.2"
@@ -3169,13 +3665,15 @@ dependencies = [
 name = "pi-usb-serial"
 version = "0.1.0"
 dependencies = [
- "az",
- "cortex-m",
  "cortex-m-rt",
- "embedded-alloc",
- "embedded-hal",
- "panic-halt",
- "rp-pico",
+ "defmt",
+ "defmt-rtt",
+ "embassy-embedded-hal",
+ "embassy-executor",
+ "embassy-rp",
+ "embassy-sync 0.6.0",
+ "embassy-time",
+ "panic-probe",
 ]
 
 [[package]]
@@ -3221,6 +3719,35 @@ dependencies = [
  "paste",
 ]
 
+[[package]]
+name = "pio-parser"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77532c2b8279aef98dfc7207ef15298a5a3d6b6cc76ccc8b65913d69f3a8dd6b"
+dependencies = [
+ "lalrpop",
+ "lalrpop-util",
+ "pio",
+ "regex-syntax 0.6.29",
+]
+
+[[package]]
+name = "pio-proc"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b04dc870fb3a4fd8b3e4ca8c61b53bc8ac4eb78b66805d2b3c2e5c4829e0d7a"
+dependencies = [
+ "codespan-reporting",
+ "lalrpop-util",
+ "pio",
+ "pio-parser",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "regex-syntax 0.6.29",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "piper"
 version = "0.2.1"
@@ -3304,7 +3831,7 @@ dependencies = [
  "cfg-if",
  "concurrent-queue",
  "libc",
- "log 0.4.20",
+ "log 0.4.22",
  "pin-project-lite",
  "windows-sys 0.48.0",
 ]
@@ -3335,6 +3862,12 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
 
+[[package]]
+name = "precomputed-hash"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
+
 [[package]]
 name = "pretty_env_logger"
 version = "0.5.0"
@@ -3342,7 +3875,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "865724d4dbe39d9f3dd3b52b88d859d66bcb2d6a0acfd5ea68a65fb66d4bdc1c"
 dependencies = [
  "env_logger",
- "log 0.4.20",
+ "log 0.4.22",
 ]
 
 [[package]]
@@ -3412,7 +3945,7 @@ dependencies = [
  "rand 0.8.5",
  "rand_chacha 0.3.1",
  "rand_xorshift 0.3.0",
- "regex-syntax",
+ "regex-syntax 0.8.2",
  "rusty-fork",
  "tempfile",
  "unarray",
@@ -3648,6 +4181,17 @@ dependencies = [
  "bitflags 1.3.2",
 ]
 
+[[package]]
+name = "redox_users"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd283d9651eeda4b2a83a43c1c91b266c40fd76ecd39a50a8c630ae69dc72891"
+dependencies = [
+ "getrandom",
+ "libredox",
+ "thiserror",
+]
+
 [[package]]
 name = "regex"
 version = "1.10.2"
@@ -3657,7 +4201,7 @@ dependencies = [
  "aho-corasick",
  "memchr",
  "regex-automata",
- "regex-syntax",
+ "regex-syntax 0.8.2",
 ]
 
 [[package]]
@@ -3668,9 +4212,15 @@ checksum = "5f804c7828047e88b2d32e2d7fe5a105da8ee3264f01902f796c8e067dc2483f"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-syntax",
+ "regex-syntax 0.8.2",
 ]
 
+[[package]]
+name = "regex-syntax"
+version = "0.6.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
+
 [[package]]
 name = "regex-syntax"
 version = "0.8.2"
@@ -3704,13 +4254,13 @@ dependencies = [
  "hyper-tls",
  "ipnet",
  "js-sys",
- "log 0.4.20",
+ "log 0.4.22",
  "mime 0.3.17",
  "native-tls",
  "once_cell",
  "percent-encoding 2.3.1",
  "pin-project-lite",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "serde_urlencoded",
  "system-configuration",
@@ -3731,6 +4281,16 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "rp-pac"
+version = "6.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f30f6c4c846269293db805e9c77864ff7b923395b480550df44f0868e3765337"
+dependencies = [
+ "cortex-m",
+ "cortex-m-rt",
+]
+
 [[package]]
 name = "rp-pico"
 version = "0.8.0"
@@ -3762,7 +4322,7 @@ dependencies = [
  "cortex-m",
  "critical-section",
  "embedded-dma",
- "embedded-hal",
+ "embedded-hal 0.2.7",
  "frunk",
  "fugit",
  "itertools 0.10.5",
@@ -3887,6 +4447,12 @@ dependencies = [
  "base64 0.21.5",
 ]
 
+[[package]]
+name = "rustversion"
+version = "1.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
+
 [[package]]
 name = "rusty-fork"
 version = "0.3.0"
@@ -4013,18 +4579,18 @@ checksum = "34b623917345a631dc9608d5194cc206b3fe6c3554cd1c75b937e55e285254af"
 
 [[package]]
 name = "serde"
-version = "1.0.193"
+version = "1.0.204"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25dd9975e68d0cb5aa1120c288333fc98731bd1dd12f561e468ea4728c042b89"
+checksum = "bc76f558e0cbb2a839d37354c575f1dc3fdc6546b5be373ba43d95f231bf7c12"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.193"
+version = "1.0.204"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43576ca501357b9b071ac53cdc7da8ef0cbd9493d8df094cd821777ea6e894d3"
+checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4039,7 +4605,7 @@ checksum = "3d1c7e3eac408d115102c4c24ad393e0821bb3a5df4d506a80f85f7a742a526b"
 dependencies = [
  "itoa",
  "ryu",
- "serde 1.0.193",
+ "serde 1.0.204",
 ]
 
 [[package]]
@@ -4048,7 +4614,7 @@ version = "0.6.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eb3622f419d1296904700073ea6cc23ad690adbd66f13ea683df73298736f0c1"
 dependencies = [
- "serde 1.0.193",
+ "serde 1.0.204",
 ]
 
 [[package]]
@@ -4060,7 +4626,7 @@ dependencies = [
  "form_urlencoded",
  "itoa",
  "ryu",
- "serde 1.0.193",
+ "serde 1.0.204",
 ]
 
 [[package]]
@@ -4071,7 +4637,7 @@ dependencies = [
  "cool_asserts",
  "nary_tree",
  "nom",
- "serde 1.0.193",
+ "serde 1.0.204",
  "thiserror",
  "typeshare",
  "uuid 0.8.2",
@@ -4263,12 +4829,12 @@ dependencies = [
  "hashlink",
  "hex",
  "indexmap",
- "log 0.4.20",
+ "log 0.4.22",
  "memchr",
  "once_cell",
  "paste",
  "percent-encoding 2.3.1",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "sha2",
  "smallvec",
@@ -4307,7 +4873,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "sha2",
  "sqlx-core",
@@ -4343,14 +4909,14 @@ dependencies = [
  "hkdf",
  "hmac",
  "itoa",
- "log 0.4.20",
+ "log 0.4.22",
  "md-5",
  "memchr",
  "once_cell",
  "percent-encoding 2.3.1",
  "rand 0.8.5",
  "rsa",
- "serde 1.0.193",
+ "serde 1.0.204",
  "sha1",
  "sha2",
  "smallvec",
@@ -4383,12 +4949,12 @@ dependencies = [
  "hmac",
  "home",
  "itoa",
- "log 0.4.20",
+ "log 0.4.22",
  "md-5",
  "memchr",
  "once_cell",
  "rand 0.8.5",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "sha1",
  "sha2",
@@ -4414,9 +4980,9 @@ dependencies = [
  "futures-intrusive",
  "futures-util",
  "libsqlite3-sys",
- "log 0.4.20",
+ "log 0.4.22",
  "percent-encoding 2.3.1",
- "serde 1.0.193",
+ "serde 1.0.204",
  "sqlx-core",
  "tracing",
  "url 2.5.0",
@@ -4429,6 +4995,19 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
+[[package]]
+name = "string_cache"
+version = "0.8.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f91138e76242f575eb1d3b38b4f1362f10d3a43f47d182a5b359af488a02293b"
+dependencies = [
+ "new_debug_unreachable",
+ "once_cell",
+ "parking_lot",
+ "phf_shared 0.10.0",
+ "precomputed-hash",
+]
+
 [[package]]
 name = "stringprep"
 version = "0.1.4"
@@ -4446,6 +5025,12 @@ version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
 [[package]]
 name = "subtle"
 version = "2.5.0"
@@ -4537,6 +5122,17 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "term"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c59df8ac95d96ff9bede18eb7300b0fda5e5d8d90960e76f8e14ae765eedbf1f"
+dependencies = [
+ "dirs-next",
+ "rustversion",
+ "winapi",
+]
+
 [[package]]
 name = "termcolor"
 version = "1.4.0"
@@ -4608,7 +5204,7 @@ dependencies = [
  "deranged",
  "itoa",
  "powerfmt",
- "serde 1.0.193",
+ "serde 1.0.204",
  "time-core",
  "time-macros",
 ]
@@ -4636,6 +5232,15 @@ dependencies = [
  "chrono-tz",
 ]
 
+[[package]]
+name = "tiny-keccak"
+version = "2.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c9d3793400a45f954c52e73d068316d76b6f4e36977e3fcebb13a2721e80237"
+dependencies = [
+ "crunchy",
+]
+
 [[package]]
 name = "tinystr"
 version = "0.7.5"
@@ -4718,7 +5323,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "212d5dcb2a1ce06d81107c3d0ffa3121fe974b73f068c8282cb1c32328113b6c"
 dependencies = [
  "futures-util",
- "log 0.4.20",
+ "log 0.4.22",
  "tokio",
  "tungstenite",
 ]
@@ -4743,7 +5348,7 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "185d8ab0dfbb35cf1399a6344d8484209c088f75f8f68230da55d48d95d43e3d"
 dependencies = [
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_spanned",
  "toml_datetime",
  "toml_edit 0.20.2",
@@ -4755,7 +5360,7 @@ version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7cda73e2f1397b1262d6dfdcef8aafae14d1de7748d66822d3bfeeb6d03e5e4b"
 dependencies = [
- "serde 1.0.193",
+ "serde 1.0.204",
 ]
 
 [[package]]
@@ -4776,7 +5381,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "396e4d48bbb2b7554c944bde63101b5ae446cff6ec4a24227428f15eb72ef338"
 dependencies = [
  "indexmap",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_spanned",
  "toml_datetime",
  "winnow",
@@ -4794,7 +5399,7 @@ version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
 dependencies = [
- "log 0.4.20",
+ "log 0.4.22",
  "pin-project-lite",
  "tracing-attributes",
  "tracing-core",
@@ -4847,7 +5452,7 @@ dependencies = [
  "data-encoding",
  "http 0.2.11",
  "httparse",
- "log 0.4.20",
+ "log 0.4.22",
  "rand 0.8.5",
  "sha1",
  "thiserror",
@@ -4892,7 +5497,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f44d1a2f454cb35fbe05b218c410792697e76bd868f48d3a418f2cd1a7d527d6"
 dependencies = [
  "chrono",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "typeshare-annotation",
 ]
@@ -4976,6 +5581,18 @@ version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1dd624098567895118886609431a7c3b8f516e41d30e0643f03d94592a147e36"
 
+[[package]]
+name = "unicode-width"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0336d538f7abc86d282a4189614dfaa90810dfc2c6f6427eaf88e16311dd225d"
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c"
+
 [[package]]
 name = "unicode_categories"
 version = "0.1.1"
@@ -5054,7 +5671,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
 dependencies = [
  "getrandom",
- "serde 1.0.193",
+ "serde 1.0.204",
 ]
 
 [[package]]
@@ -5108,7 +5725,7 @@ version = "0.1.0"
 dependencies = [
  "authdb",
  "http 1.0.0",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "tokio",
  "warp",
@@ -5165,7 +5782,7 @@ dependencies = [
  "headers",
  "http 0.2.11",
  "hyper 0.14.28",
- "log 0.4.20",
+ "log 0.4.22",
  "mime 0.3.17",
  "mime_guess 2.0.4",
  "multer",
@@ -5173,7 +5790,7 @@ dependencies = [
  "pin-project",
  "rustls-pemfile",
  "scoped-tls",
- "serde 1.0.193",
+ "serde 1.0.204",
  "serde_json",
  "serde_urlencoded",
  "tokio",
@@ -5213,7 +5830,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1b56f625e64f3a1084ded111c4d5f477df9f8c92df113852fa5a374dbda78826"
 dependencies = [
  "bumpalo",
- "log 0.4.20",
+ "log 0.4.22",
  "once_cell",
  "proc-macro2",
  "quote",
diff --git a/pi-usb-serial/.cargo/config b/pi-usb-serial/.cargo/config
deleted file mode 100644
index bfd0de3..0000000
--- a/pi-usb-serial/.cargo/config
+++ /dev/null
@@ -1,14 +0,0 @@
-[build]
-target = "thumbv6m-none-eabi"
-
-[target.thumbv6m-none-eabi]
-rustflags = [
-    "-C", "link-arg=--nmagic",
-    "-C", "link-arg=-Tlink.x",
-    "-C", "inline-threshold=5",
-    "-C", "no-vectorize-loops",
-]
-
-[target.'cfg(all(target_arch = "arm", target_os = "none"))']
-runner = "elf2uf2-rs -d"
-
diff --git a/pi-usb-serial/.cargo/config.toml b/pi-usb-serial/.cargo/config.toml
new file mode 100644
index 0000000..f4e2179
--- /dev/null
+++ b/pi-usb-serial/.cargo/config.toml
@@ -0,0 +1,6 @@
+[build]
+target = "thumbv6m-none-eabi"
+
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+runner = "elf2uf2-rs -d"
+
diff --git a/pi-usb-serial/Cargo.toml b/pi-usb-serial/Cargo.toml
index 3410d5c..e641f9e 100644
--- a/pi-usb-serial/Cargo.toml
+++ b/pi-usb-serial/Cargo.toml
@@ -5,11 +5,14 @@ edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [dependencies]
-az              = { version = "1" }
-cortex-m-rt     = { version = "0.7.3" }
-cortex-m        = { version = "0.7.7" }
-embedded-alloc  = { version = "0.5.1" }
-embedded-hal    = { version = "0.2.7" }
-panic-halt      = { version = "0.2.0" }
-rp-pico         = { version = "0.8.0" }
+embassy-embedded-hal = { version = "0.1.0", features = ["defmt"] }
+embassy-sync = { version = "0.6.0", features = ["defmt"] }
+embassy-executor = { version = "0.5.0", features = ["task-arena-size-98304", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
+embassy-time = { version = "0.3.1", features = ["defmt", "defmt-timestamp-uptime"] }
+embassy-rp = { version = "0.1.0", features = ["defmt", "unstable-pac", "time-driver", "critical-section-impl"] }
 
+defmt = "0.3"
+defmt-rtt = "0.4"
+
+cortex-m-rt = "0.7.0"
+panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/pi-usb-serial/build.rs b/pi-usb-serial/build.rs
index 8293639..1500d14 100644
--- a/pi-usb-serial/build.rs
+++ b/pi-usb-serial/build.rs
@@ -4,11 +4,23 @@ use std::io::Write;
 use std::path::PathBuf;
 
 fn main() {
+    // Put `memory.x` in our output directory and ensure it's
+    // on the linker search path.
     let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
     File::create(out.join("memory.x"))
         .unwrap()
         .write_all(include_bytes!("memory.x"))
         .unwrap();
     println!("cargo:rustc-link-search={}", out.display());
+
+    // By default, Cargo will re-run a build script whenever
+    // any file in the project changes. By specifying `memory.x`
+    // here, we ensure the build script is only re-run when
+    // `memory.x` is changed.
     println!("cargo:rerun-if-changed=memory.x");
+
+    println!("cargo:rustc-link-arg-bins=--nmagic");
+    println!("cargo:rustc-link-arg-bins=-Tlink.x");
+    println!("cargo:rustc-link-arg-bins=-Tlink-rp.x");
+    println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
 }
diff --git a/pi-usb-serial/src/main.rs b/pi-usb-serial/src/main.rs
index 5b05e61..8bca389 100644
--- a/pi-usb-serial/src/main.rs
+++ b/pi-usb-serial/src/main.rs
@@ -5,55 +5,26 @@
 #![no_std]
 #![no_main]
 
-use cortex_m::delay::Delay;
-use embedded_hal::digital::v2::OutputPin;
-use panic_halt as _;
-use rp_pico::{
-    entry,
-    hal::{
-        clocks::init_clocks_and_plls,
-        pac::{CorePeripherals, Peripherals},
-        watchdog::Watchdog,
-        Clock, Sio,
-    },
-    Pins,
-};
+use embassy_executor::Spawner;
+use embassy_rp::gpio;
+use embassy_time::Timer;
+use gpio::{Level, Output};
+use defmt::*;
+use defmt_rtt as _;
+use panic_probe as _;
 
-#[entry]
-fn main() -> ! {
-    let mut pac = Peripherals::take().unwrap();
-    let core = CorePeripherals::take().unwrap();
-    let sio = Sio::new(pac.SIO);
-    let pins = Pins::new(
-        pac.IO_BANK0,
-        pac.PADS_BANK0,
-        sio.gpio_bank0,
-        &mut pac.RESETS,
-    );
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_rp::init(Default::default());
+    let mut led = Output::new(p.PIN_25, Level::Low);
 
-    let mut watchdog = Watchdog::new(pac.WATCHDOG);
-    let clocks = init_clocks_and_plls(
-        12_000_000u32,
-        pac.XOSC,
-        pac.CLOCKS,
-        pac.PLL_SYS,
-        pac.PLL_USB,
-        &mut pac.RESETS,
-        &mut watchdog,
-    )
-    .ok()
-    .unwrap();
-
-    let mut delay = Delay::new(core.SYST, clocks.system_clock.freq().to_Hz());
-
-    let mut led_pin = pins.led.into_push_pull_output();
-
-    let delay_ms = 1000;
     loop {
-        let _ = led_pin.set_high();
-        delay.delay_ms(delay_ms);
+        info!("led on!");
+        led.set_high();
+        Timer::after_secs(1).await;
 
-        let _ = led_pin.set_low();
-        delay.delay_ms(delay_ms);
+        info!("led off!");
+        led.set_low();
+        Timer::after_secs(1).await;
     }
 }
diff --git a/rust-toolchain b/rust-toolchain
index 10e3c69..d16999b 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.77.0"
+channel = "1.80.0"
 targets = [ "wasm32-unknown-unknown", "thumbv6m-none-eabi" ]