diff --git a/pkgs/by-name/at/attic-client/Cargo.lock b/pkgs/by-name/at/attic-client/Cargo.lock
index a8bd1f01fcfe0..53a47e002f007 100644
--- a/pkgs/by-name/at/attic-client/Cargo.lock
+++ b/pkgs/by-name/at/attic-client/Cargo.lock
@@ -92,6 +92,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "anes"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b46cbb362ab8752921c97e041f5e366ee6297bd428a31275b9fcf1e380f7299"
+
 [[package]]
 name = "anstream"
 version = "0.6.14"
@@ -231,11 +237,13 @@ dependencies = [
  "base64 0.22.1",
  "bytes",
  "cc",
+ "criterion",
  "cxx",
  "cxx-build",
  "digest",
  "displaydoc",
  "ed25519-compact",
+ "fastcdc",
  "futures",
  "hex",
  "lazy_static",
@@ -250,7 +258,6 @@ dependencies = [
  "sha2",
  "tempfile",
  "tokio",
- "tokio-test",
  "version-compare",
  "wildmatch",
  "xdg",
@@ -309,7 +316,6 @@ dependencies = [
  "digest",
  "displaydoc",
  "enum-as-inner",
- "fastcdc",
  "futures",
  "hex",
  "http-body-util",
@@ -327,7 +333,6 @@ dependencies = [
  "serde_with",
  "sha2",
  "tokio",
- "tokio-test",
  "tokio-util",
  "toml",
  "tower-http",
@@ -1050,6 +1055,12 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "cast"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
+
 [[package]]
 name = "cc"
 version = "1.1.13"
@@ -1088,6 +1099,33 @@ dependencies = [
  "windows-targets 0.52.5",
 ]
 
+[[package]]
+name = "ciborium"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42e69ffd6f0917f5c029256a24d0161db17cea3997d185db0d35926308770f0e"
+dependencies = [
+ "ciborium-io",
+ "ciborium-ll",
+ "serde",
+]
+
+[[package]]
+name = "ciborium-io"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05afea1e0a06c9be33d539b876f1ce3692f4afea2cb41f740e7743225ed1c757"
+
+[[package]]
+name = "ciborium-ll"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57663b653d948a338bfb3eeba9bb2fd5fcfaecb9e199e87e1eda4d9e8b240fd9"
+dependencies = [
+ "ciborium-io",
+ "half",
+]
+
 [[package]]
 name = "clap"
 version = "4.5.4"
@@ -1307,6 +1345,44 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "criterion"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2b12d017a929603d80db1831cd3a24082f8137ce19c69e6447f54f5fc8d692f"
+dependencies = [
+ "anes",
+ "cast",
+ "ciborium",
+ "clap",
+ "criterion-plot",
+ "futures",
+ "is-terminal",
+ "itertools 0.10.5",
+ "num-traits",
+ "once_cell",
+ "oorandom",
+ "plotters",
+ "rayon",
+ "regex",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "tinytemplate",
+ "tokio",
+ "walkdir",
+]
+
+[[package]]
+name = "criterion-plot"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b50826342786a51a89e2da3a28f1c32b06e387201bc2d19791f622c673706b1"
+dependencies = [
+ "cast",
+ "itertools 0.10.5",
+]
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.13"
@@ -1316,6 +1392,25 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "crossbeam-deque"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "613f8cc01fe9cf1a3eb3d7f488fd2fa8388403e97039e2f73692932e291a770d"
+dependencies = [
+ "crossbeam-epoch",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-epoch"
+version = "0.9.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b82ac4a3c2ca9c3460964f020e1402edd5753411d7737aa39c3714ad1b5420e"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-queue"
 version = "0.3.11"
@@ -1331,6 +1426,12 @@ version = "0.8.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22ec99545bb0ed0ea7bb9b8e1e9122ea386ff8a48c0922e43f36d45ab09e0e80"
 
+[[package]]
+name = "crunchy"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
+
 [[package]]
 name = "crypto-bigint"
 version = "0.4.9"
@@ -1698,6 +1799,11 @@ name = "fastcdc"
 version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a71061d097bfa9a5a4d2efdec57990d9a88745020b365191d37e48541a1628f2"
+dependencies = [
+ "async-stream",
+ "tokio",
+ "tokio-stream",
+]
 
 [[package]]
 name = "fastrand"
@@ -1956,6 +2062,16 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "half"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6dd08c532ae367adf81c312a4580bc67f1d0fe8bc9c460520283f4c0ff277888"
+dependencies = [
+ "cfg-if",
+ "crunchy",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.12.3"
@@ -2388,12 +2504,32 @@ version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f518f335dce6725a761382244631d86cf0ccb2863413590b31338feb467f9c3"
 
+[[package]]
+name = "is-terminal"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f23ff5ef2b80d608d61efee834934d862cd92461afc0560dedf493e4c033738b"
+dependencies = [
+ "hermit-abi",
+ "libc",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "is_terminal_polyfill"
 version = "1.70.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8478577c03552c21db0e2724ffb8986a5ce7af88107e6be5d2ee6e158c12800"
 
+[[package]]
+name = "itertools"
+version = "0.10.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itertools"
 version = "0.12.1"
@@ -2642,8 +2778,9 @@ dependencies = [
 
 [[package]]
 name = "nix-base32"
-version = "0.1.2-alpha.0"
-source = "git+https://github.com/zhaofengli/nix-base32.git?rev=b850c6e9273d1c39bd93abb704a53345f5be92eb#b850c6e9273d1c39bd93abb704a53345f5be92eb"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2628953ed836273ee4262e3708a8ef63ca38bd8a922070626eef7f9e5d8d536"
 
 [[package]]
 name = "nom"
@@ -2776,6 +2913,12 @@ version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
+name = "oorandom"
+version = "11.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b410bbe7e14ab526a0e86877eb47c6996a2bd7746f027ba551028c925390e4e9"
+
 [[package]]
 name = "openssl-probe"
 version = "0.1.5"
@@ -3002,6 +3145,34 @@ version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
 
+[[package]]
+name = "plotters"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a15b6eccb8484002195a3e44fe65a4ce8e93a625797a063735536fd59cb01cf3"
+dependencies = [
+ "num-traits",
+ "plotters-backend",
+ "plotters-svg",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "plotters-backend"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "414cec62c6634ae900ea1c56128dfe87cf63e7caece0852ec76aba307cebadb7"
+
+[[package]]
+name = "plotters-svg"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81b30686a7d9c3e010b84284bdd26a29f2138574f52f5eb6f794fc0ad924e705"
+dependencies = [
+ "plotters-backend",
+]
+
 [[package]]
 name = "portable-atomic"
 version = "1.6.0"
@@ -3088,7 +3259,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "81bddcdb20abf9501610992b6759a4c888aef7d1a7247ef75e2404275ac24af1"
 dependencies = [
  "anyhow",
- "itertools",
+ "itertools 0.12.1",
  "proc-macro2",
  "quote",
  "syn 2.0.66",
@@ -3168,6 +3339,26 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "rayon"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b418a60154510ca1a002a752ca9714984e21e4241e804d32555251faf8b78ffa"
+dependencies = [
+ "either",
+ "rayon-core",
+]
+
+[[package]]
+name = "rayon-core"
+version = "1.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1465873a3dfdaa8ae7cb14b4383657caab0b3e8a0aa9ae8e04b044854c8dfce2"
+dependencies = [
+ "crossbeam-deque",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.4.1"
@@ -4069,7 +4260,7 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ce81b7bd7c4493975347ef60d8c7e8b742d4694f4c49f93e0a12ea263938176c"
 dependencies = [
- "itertools",
+ "itertools 0.12.1",
  "nom",
  "unicode_categories",
 ]
@@ -4459,6 +4650,16 @@ dependencies = [
  "time-core",
 ]
 
+[[package]]
+name = "tinytemplate"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be4d6b5f19ff7664e8c98d03e2139cb510db9b0a60b55f8e8709b689d939b6bc"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
@@ -4546,19 +4747,6 @@ dependencies = [
  "tokio",
 ]
 
-[[package]]
-name = "tokio-test"
-version = "0.4.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2468baabc3311435b55dd935f702f42cd1b8abb7e754fb7dfb16bd36aa88f9f7"
-dependencies = [
- "async-stream",
- "bytes",
- "futures-core",
- "tokio",
- "tokio-stream",
-]
-
 [[package]]
 name = "tokio-util"
 version = "0.7.11"
diff --git a/pkgs/by-name/at/attic-client/package.nix b/pkgs/by-name/at/attic-client/package.nix
index aa84bd2a122fa..44b6f1b1d886c 100644
--- a/pkgs/by-name/at/attic-client/package.nix
+++ b/pkgs/by-name/at/attic-client/package.nix
@@ -11,13 +11,13 @@
 }:
 rustPlatform.buildRustPackage {
   pname = "attic";
-  version = "0-unstable-2024-08-19";
+  version = "0-unstable-2024-10-04";
 
   src = fetchFromGitHub {
     owner = "zhaofengli";
     repo = "attic";
-    rev = "acf3c351f8de47c6857f31948ab253f9c7ce2a6f";
-    hash = "sha256-jcY81r8PdMQ9dCGhT0YLZzxPj3kQJXyWCmvQLXbR1EI=";
+    rev = "61ebdef2e263c091f24807b07701be5cb8068dea";
+    hash = "sha256-whgxjoDF7aey3xWy2b9Dp+NHsszK6By+raEbygcSU6w=";
   };
 
   nativeBuildInputs = [
@@ -34,9 +34,6 @@ rustPlatform.buildRustPackage {
 
   cargoLock = {
     lockFile = ./Cargo.lock;
-    outputHashes = {
-      "nix-base32-0.1.2-alpha.0" = "sha256-wtPWGOamy3+ViEzCxMSwBcoR4HMMD0t8eyLwXfCDFdo=";
-    };
   };
   cargoBuildFlags = lib.concatMapStrings (c: "-p ${c} ") crates;
 
@@ -56,6 +53,8 @@ rustPlatform.buildRustPackage {
     fi
   '';
 
+  passthru.updateScript = ./update.sh;
+
   meta = with lib; {
     description = "Multi-tenant Nix Binary Cache";
     homepage = "https://github.com/zhaofengli/attic";
diff --git a/pkgs/by-name/at/attic-client/update.sh b/pkgs/by-name/at/attic-client/update.sh
new file mode 100755
index 0000000000000..e6ec0ab1296b3
--- /dev/null
+++ b/pkgs/by-name/at/attic-client/update.sh
@@ -0,0 +1,40 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p wget nix-prefetch-github jq coreutils
+
+# shellcheck shell=bash
+
+if [ -n "$GITHUB_TOKEN" ]; then
+    TOKEN_ARGS=(--header "Authorization: token $GITHUB_TOKEN")
+fi
+
+if [[ $# -gt 1 || $1 == -* ]]; then
+    echo "Regenerates packaging data for attic."
+    echo "Usage: $0 [git commit]"
+    exit 1
+fi
+
+set -x
+
+cd "$(dirname "$0")"
+rev="$1"
+
+set -euo pipefail
+
+if [ -z "$rev" ]; then
+    rev="$(wget -O- "${TOKEN_ARGS[@]}" "https://api.github.com/repos/zhaofengli/attic/commits?per_page=1" | jq -r '.[0].sha')"
+fi
+
+date="$(wget -O- "${TOKEN_ARGS[@]}" "https://api.github.com/repos/zhaofengli/attic/commits/$rev" | jq -r '.commit.author.date' | cut -dT -f1)"
+
+version="0-unstable-$date"
+
+# Sources
+src_hash=$(nix-prefetch-github zhaofengli attic --rev "$rev" | jq -r .hash)
+
+# Cargo.lock
+src="https://raw.githubusercontent.com/zhaofengli/attic/$rev"
+wget "${TOKEN_ARGS[@]}" "$src/Cargo.lock" -O Cargo.lock
+
+sed -i -E -e "s#version = \".*\"#version = \"$version\"#" package.nix
+sed -i -E -e "s#rev = \".*\"#rev = \"$rev\"#" package.nix
+sed -i -E -e "s#hash = \".*\"#hash = \"$src_hash\"#" package.nix