diff --git a/flake.lock b/flake.lock
index 8d456b0..e953745 100644
--- a/flake.lock
+++ b/flake.lock
@@ -10,11 +10,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1710553836,
-        "narHash": "sha256-iUQ4M7Gy+/By6Z4UAqKY1GFTU4qZLEvOxiJf0IseX00=",
+        "lastModified": 1711148452,
+        "narHash": "sha256-2MUcJV0Vs0Zfw+XPH7uslAXXpiLj3Wijcizq1DsRt3A=",
         "ref": "refs/heads/canon",
-        "rev": "3d6e66d3b921ea19323517e782efd7ed8074a365",
-        "revCount": 42,
+        "rev": "37776fcf8ca8b93a1c2a46f9323be97913113fbd",
+        "revCount": 43,
         "type": "git",
         "url": "https://git.mildlyfunctional.gay/artemist/packages.git"
       },
@@ -25,11 +25,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1711106783,
-        "narHash": "sha256-PDwAcHahc6hEimyrgGmFdft75gmLrJOZ0txX7lFqq+I=",
+        "lastModified": 1711231723,
+        "narHash": "sha256-dARJQ8AJOv6U+sdRePkbcVyVbXJTi1tReCrkkOeusiA=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "a3ed7406349a9335cb4c2a71369b697cecd9d351",
+        "rev": "e1d501922fd7351da4200e1275dfcf5faaad1220",
         "type": "github"
       },
       "original": {
@@ -43,9 +43,33 @@
       "inputs": {
         "artemist-packages": "artemist-packages",
         "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay",
         "utils": "utils"
       }
     },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": [
+          "utils"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1711246447,
+        "narHash": "sha256-g9TOluObcOEKewFo2fR4cn51Y/jSKhRRo4QZckHLop0=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "dcc802a6ec4e9cc6a1c8c393327f0c42666f22e4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
     "systems": {
       "locked": {
         "lastModified": 1681028828,
diff --git a/flake.nix b/flake.nix
index 0e5f570..dc0d5e4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -7,25 +7,35 @@
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.utils.follows = "utils";
     };
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.flake-utils.follows = "utils";
+    };
   };
-  outputs = { self, nixpkgs, utils, artemist-packages }:
+  outputs = { self, nixpkgs, utils, artemist-packages, rust-overlay }:
     utils.lib.eachDefaultSystem (system:
-      let pkgs = import nixpkgs { inherit system; };
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [
+            artemist-packages.overlays.default
+            rust-overlay.overlays.default
+          ];
+        };
       in rec {
         devShells.zephyr =
           artemist-packages.devShells.${system}.zephyr.override {
-            toolchains =
-              with artemist-packages.packages.${system}.zephyrPackages.toolchains; [
-                arm-zephyr-eabi
-                riscv64-zephyr-elf
-              ];
-            modules =
-              with artemist-packages.packages.${system}.zephyrPackages.modules; [
-                mbedtls
-                hal_rpi_pico
-                hal_atmel
-                cmsis
-              ];
+            toolchains = with pkgs.zephyrPackages.toolchains; [
+              arm-zephyr-eabi
+              riscv64-zephyr-elf
+            ];
+            modules = with pkgs.zephyrPackages.modules; [
+              mbedtls
+              hal_rpi_pico
+              hal_atmel
+              cmsis
+            ];
             extraPackages = with pkgs; [ pyocd ];
           };
         devShells.zephyr-west = devShells.zephyr.override {
@@ -33,6 +43,24 @@
           zephyrSrc = null;
           modules = [ ];
         };
+        devShells.rust-embedded = let
+          rust = pkgs.rust-bin.stable.latest.default.override {
+            extensions = [ "rust-src" "llvm-tools-preview" "clippy" ];
+            # just use all of them, why not
+            targets = [
+              "thumbv6m-none-eabi"
+              "thumbv7m-none-eabi"
+              "thumbv7em-none-eabi"
+              "thumbv7em-none-eabihf"
+              "riscv32imac-unknown-none-elf"
+            ];
+          };
+        in with pkgs;
+        mkShell {
+          packages = [ rust cargo-binutils probe-rs cargo-generate ];
+          RUST_SRC_PATH = "${rust}/lib/rustlib/src/rust/library";
+        };
+
         devShells.typst = with pkgs; mkShell { packages = [ typst ]; };
         formatter = pkgs.nixfmt;
       });
diff --git a/rust-embedded/.envrc b/rust-embedded/.envrc
new file mode 100644
index 0000000..7372345
--- /dev/null
+++ b/rust-embedded/.envrc
@@ -0,0 +1 @@
+use flake ..#rust-embedded
diff --git a/rust-embedded/.gitignore b/rust-embedded/.gitignore
new file mode 100644
index 0000000..2f7896d
--- /dev/null
+++ b/rust-embedded/.gitignore
@@ -0,0 +1 @@
+target/
diff --git a/rust/fe310-test/.cargo/config b/rust/fe310-test/.cargo/config
deleted file mode 100644
index 9a15fd0..0000000
--- a/rust/fe310-test/.cargo/config
+++ /dev/null
@@ -1,8 +0,0 @@
-[target.riscv32imac-unknown-none-elf]
-runner = "riscv64-unknown-elf-gdb -q -x gdb_init"
-rustflags = [
-  "-C", "link-arg=-Thifive1-link.x",
-]
-
-[build]
-target = "riscv32imac-unknown-none-elf"
diff --git a/rust/fe310-test/Cargo.lock b/rust/fe310-test/Cargo.lock
deleted file mode 100644
index d3dd8f7..0000000
--- a/rust/fe310-test/Cargo.lock
+++ /dev/null
@@ -1,216 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-[[package]]
-name = "bare-metal"
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- "rustc_version",
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- "nb 0.1.3",
- "void",
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-
-[[package]]
-name = "fe310-test"
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- "embedded-hal",
- "panic-halt",
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- "quote",
- "unicode-xid",
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-[[package]]
-name = "unicode-xid"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
-
-[[package]]
-name = "vcell"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "876e32dcadfe563a4289e994f7cb391197f362b6315dc45e8ba4aa6f564a4b3c"
-
-[[package]]
-name = "void"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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diff --git a/rust/fe310-test/Cargo.toml b/rust/fe310-test/Cargo.toml
deleted file mode 100644
index cfa0713..0000000
--- a/rust/fe310-test/Cargo.toml
+++ /dev/null
@@ -1,18 +0,0 @@
-[package]
-name = "fe310-test"
-version = "0.1.0"
-authors = ["Artemis Tosini <me@artem.ist>"]
-edition = "2018"
-
-
-[dependencies]
-embedded-hal = "0.2.3"
-e310x-hal = { version = "0.8.3", features = ["g002"] }
-panic-halt = "0.2.0"
-riscv = "0.5.3"
-riscv-rt = "0.6.0"
-
-[profile.release]
-codegen-units = 1
-debug = true
-lto = true
diff --git a/rust/fe310-test/src/main.rs b/rust/fe310-test/src/main.rs
deleted file mode 100644
index 7ba1210..0000000
--- a/rust/fe310-test/src/main.rs
+++ /dev/null
@@ -1,5 +0,0 @@
-#![no_std]
-#![no_main]
-
-use panic_halt as _;
-use riscv_rt::entry;
diff --git a/rust/stm32f407-test/.cargo/config b/rust/stm32f407-test/.cargo/config
deleted file mode 100644
index fc4e3b7..0000000
--- a/rust/stm32f407-test/.cargo/config
+++ /dev/null
@@ -1,9 +0,0 @@
-[target.'cfg(all(target_arch = "arm", target_os = "none"))']
-runner = "gdb -q -x openocd.gdb"
-
-rustflags = [
-  "-C", "link-arg=-Tlink.x",
-]
-
-[build]
-target = "thumbv7em-none-eabihf"
diff --git a/rust/stm32f407-test/.gitignore b/rust/stm32f407-test/.gitignore
deleted file mode 100644
index 561775e..0000000
--- a/rust/stm32f407-test/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-itm.txt
diff --git a/rust/stm32f407-test/Cargo.lock b/rust/stm32f407-test/Cargo.lock
deleted file mode 100644
index d2b91bb..0000000
--- a/rust/stm32f407-test/Cargo.lock
+++ /dev/null
@@ -1,303 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
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diff --git a/rust/stm32f407-test/Cargo.toml b/rust/stm32f407-test/Cargo.toml
deleted file mode 100644
index 57d2957..0000000
--- a/rust/stm32f407-test/Cargo.toml
+++ /dev/null
@@ -1,28 +0,0 @@
-[package]
-name = "stm32f407-test"
-version = "0.1.0"
-authors = ["Artemis Tosini <me@artem.ist>"]
-edition = "2018"
-
-
-[dependencies]
-embedded-hal = "0.2"
-nb = "0.1.2"
-cortex-m = "0.6"
-cortex-m-rt = "0.6"
-cortex-m-semihosting = "0.3"
-panic-semihosting = "0.5"
-
-[dependencies.stm32f4xx-hal]
-version = "0.8"
-features = ["rt", "stm32f407"]
-
-[[bin]]
-name = "stm32f407-test"
-test = false
-bench = false
-
-[profile.release]
-codegen-units = 1
-debug = true
-lto = true
diff --git a/rust/stm32f407-test/build.rs b/rust/stm32f407-test/build.rs
deleted file mode 100644
index 555cdf6..0000000
--- a/rust/stm32f407-test/build.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-use std::env;
-use std::fs::File;
-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");
-}
diff --git a/rust/stm32f407-test/memory.x b/rust/stm32f407-test/memory.x
deleted file mode 100644
index 1cd383d..0000000
--- a/rust/stm32f407-test/memory.x
+++ /dev/null
@@ -1,9 +0,0 @@
-MEMORY
-{
-  /* NOTE K = KiBi = 1024 bytes */
-  FLASH : ORIGIN = 0x08000000, LENGTH = 1M 
-  RAM : ORIGIN = 0x20000000, LENGTH = 128K
-  CCRAM : ORIGIN = 0x10000000, LENGTH = 64K
-}
-
-_stack_start = ORIGIN(RAM) + LENGTH(RAM);
diff --git a/rust/stm32f407-test/openocd.cfg b/rust/stm32f407-test/openocd.cfg
deleted file mode 100644
index 41359fa..0000000
--- a/rust/stm32f407-test/openocd.cfg
+++ /dev/null
@@ -1,9 +0,0 @@
-source [find interface/stlink-v2-1.cfg]
-transport select hla_swd
-
-# increase working area to 64KB
-set WORKAREASIZE 0x10000
-
-source [find target/stm32f4x.cfg]
-
-reset_config srst_only
diff --git a/rust/stm32f407-test/openocd.gdb b/rust/stm32f407-test/openocd.gdb
deleted file mode 100644
index ea5f5aa..0000000
--- a/rust/stm32f407-test/openocd.gdb
+++ /dev/null
@@ -1,36 +0,0 @@
-target extended-remote :3333
-
-# print demangled symbols
-set print asm-demangle on
-
-# set backtrace limit to not have infinite backtrace loops
-set backtrace limit 32
-
-# detect unhandled exceptions, hard faults and panics
-# break DefaultHandler
-# break HardFault
-# break rust_begin_unwind
-
-# *try* to stop at the user entry point (it might be gone due to inlining)
-break main
-
-# send captured ITM to the file itm.txt
-# (the programmer's SWO pin on the STM32F4DISCOVERY is hard-wired to PB3. Make sure not to use it for a different purpose!)
-# 168000000 is the core clock frequency
-monitor tpiu config internal itm.txt uart off 168000000
-
-
-# OR: make the microcontroller SWO (PB3) pin output compatible with UART (8N1)
-# 8000000 is the frequency of the SWO pin
-# monitor tpiu config external uart off 8000000 2000000
-
-# # enable ITM port 1
-monitor itm port 1 on
-
-# Semihosting
-monitor arm semihosting enable
-
-load
-
-# start the process but immediately halt the processor
-stepi
diff --git a/rust/stm32f407-test/src/main.rs b/rust/stm32f407-test/src/main.rs
deleted file mode 100644
index b31edba..0000000
--- a/rust/stm32f407-test/src/main.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-#![no_std]
-#![no_main]
-
-use panic_halt as _;
-
-
-use cortex_m_rt::entry;
-
-#[entry]
-fn main() -> ! {
-
-    loop { }
-}
diff --git a/rust/stm32f407-test/stlink.gdb b/rust/stm32f407-test/stlink.gdb
deleted file mode 100644
index 4705039..0000000
--- a/rust/stm32f407-test/stlink.gdb
+++ /dev/null
@@ -1,36 +0,0 @@
-target extended-remote :4343
-
-# print demangled symbols
-set print asm-demangle on
-
-# set backtrace limit to not have infinite backtrace loops
-set backtrace limit 32
-
-# detect unhandled exceptions, hard faults and panics
-# break DefaultHandler
-# break HardFault
-# break rust_begin_unwind
-
-# *try* to stop at the user entry point (it might be gone due to inlining)
-break main
-
-# send captured ITM to the file itm.txt
-# (the programmer's SWO pin on the STM32F4DISCOVERY is hard-wired to PB3. Make sure not to use it for a different purpose!)
-# 168000000 is the core clock frequency
-monitor tpiu config internal itm.txt uart off 168000000
-
-
-# OR: make the microcontroller SWO (PB3) pin output compatible with UART (8N1)
-# 8000000 is the frequency of the SWO pin
-# monitor tpiu config external uart off 8000000 2000000
-
-# # enable ITM port 1
-monitor itm port 1 on
-
-# Semihosting
-monitor arm semihosting enable
-
-load
-
-# start the process but immediately halt the processor
-stepi