diff --git a/pkgs/crunch/default.nix b/pkgs/crunch/default.nix
new file mode 100644
index 0000000..8bdf857
--- /dev/null
+++ b/pkgs/crunch/default.nix
@@ -0,0 +1,264 @@
+{
+  lib,
+  stdenv,
+  writeShellScriptBin,
+  coreutils,
+  bash,
+}: let
+  script = writeShellScriptBin "crunch" ''
+    #!/usr/bin/env bash
+    set -euo pipefail
+
+    # ═══════════════════════════════════════════════════════════════
+    # crunch — Voice-notified reminders & AI crunch jobs
+    #          via systemd transient timers.
+    #
+    # Requires: talk (ElevenLabs TTS) in PATH, ELEVENLABS_API_KEY env.
+    # Optional: pi, opencode for AI crunch mode.
+    # ═══════════════════════════════════════════════════════════════
+
+    TALK="''${TALK:-talk}"
+    SELF="$(readlink -f "''${BASH_SOURCE[0]:-$0}")"
+
+    # ── Helpers ───────────────────────────────────────────────────
+
+    usage() {
+      cat <<'EOF'
+    crunch — voice-notified reminders and AI jobs via systemd timers
+
+    Usage:
+      crunch at <time> <message>              One-shot (14:30 or "2026-07-03 14:30")
+      crunch in <duration> <message>          One-shot after delay (30m, 2h, 1h30m)
+      crunch daily <time> <message>           Recurring daily at time
+      crunch weekly <day> <time> <message>    Recurring weekly (Mon or Montag)
+      crunch ai <engine> <type> <time> <prompt>  AI crunch (pi|opencode)
+      crunch list                              List active jobs
+      crunch cancel <name>                     Cancel a job
+      crunch purge                             Remove fired one-shot jobs
+
+    Examples:
+      crunch at "14:30" "Müll rausbringen"
+      crunch at "2026-07-03 10:00" "Zahnarzttermin"
+      crunch in "30m" "Build checken"
+      crunch daily "09:00" "Daily standup"
+      crunch weekly "Mon 09:00" "Weekly review"
+      crunch weekly "Montag 09:00" "Weekly review"
+      crunch ai pi in "1h" "Fasse neueste Commits zusammen"
+      crunch ai opencode daily "08:00" "Review offene Issues"
+      crunch list
+      crunch cancel mll-rausbringen-12345
+
+    Environment:
+      VOICE_NOTIFY=0       Silence voice output (passed to talk)
+      ELEVENLABS_API_KEY   Required by talk
+      TALK                 Override path to talk binary
+    EOF
+    }
+
+    # German → systemd day abbreviations
+    norm_day() {
+      local d="''${1,,}"
+      d="''${d%%.*}"  # strip trailing dot (German abbreviation)
+      case "$d" in
+        mo|mon|monday|montag)        echo "Mon" ;;
+        di|tue|tues|tuesday|dienstag) echo "Tue" ;;
+        mi|wed|weds|wednesday|mittwoch) echo "Wed" ;;
+        do|thu|thur|thurs|thursday|donnerstag) echo "Thu" ;;
+        fr|fri|friday|freitag)        echo "Fri" ;;
+        sa|sat|saturday|samstag)      echo "Sat" ;;
+        so|su|sun|sunday|sonntag)     echo "Sun" ;;
+        *)                            echo "''${1^}" ;;
+      esac
+    }
+
+    make_name() {
+      local msg="''${1:?No message}"
+      local slug
+      slug="''${msg,,}"
+      slug="''${slug//[^a-z0-9 ]/}"
+      slug="''${slug// /-}"
+      slug="''${slug:0:25}"
+      slug="''${slug%-}"  # trim trailing dash
+      echo "crunch-''${slug:-job}-$RANDOM"
+    }
+
+    # schedule <type> <time_spec> <exec_cmd> <name>
+    schedule() {
+      local type="$1" time_spec="$2" exec_cmd="$3" name="$4"
+      local timer_flag=""
+
+      case "$type" in
+        at)
+          if [[ "$time_spec" == *' '* ]]; then
+            # "2026-07-03 14:30" → specific date
+            timer_flag="--on-calendar=''${time_spec}:00"
+          else
+            # "14:30" → next matching time
+            timer_flag="--on-calendar=*-*-* ''${time_spec}:00"
+          fi
+          ;;
+        in)
+          timer_flag="--on-active=''${time_spec}"
+          ;;
+        daily)
+          timer_flag="--on-calendar=*-*-* ''${time_spec}:00"
+          ;;
+        weekly)
+          local day time_part
+          day="$(norm_day "''${time_spec%% *}")"
+          time_part="''${time_spec##* }"
+          timer_flag="--on-calendar=''${day} *-*-* ''${time_part}:00"
+          ;;
+        *)
+          echo "Unknown schedule type: $type" >&2
+          exit 1
+          ;;
+      esac
+
+      systemd-run --user \
+        --unit="''${name}" \
+        --description="crunch job" \
+        "''${timer_flag}" \
+        bash -lc "''${exec_cmd}" \
+        && echo "✓ Scheduled: $name"
+    }
+
+    # ── Internal execution (called by systemd) ────────────────────
+
+    case "''${1:-}" in
+      _say)
+        shift
+        exec "$TALK" "$*"
+        ;;
+      _ai)
+        engine="$2"; shift 2
+        case "$engine" in
+          pi|pi-agent)
+            pi -p "$*" | "$TALK"
+            ;;
+          opencode|oc)
+            opencode run "$*" -q | "$TALK"
+            ;;
+          *)
+            echo "Unknown engine: $engine (use: pi, opencode)" >&2
+            exit 1
+            ;;
+        esac
+        exit $?
+        ;;
+    esac
+
+    # ── CLI ───────────────────────────────────────────────────────
+
+    [ $# -lt 1 ] && { usage; exit 0; }
+
+    cmd="$1"; shift
+
+    case "$cmd" in
+      # ── Simple voice reminders ──
+      at)
+        [ $# -lt 2 ] && { echo "Usage: crunch at <time> <message>" >&2; exit 1; }
+        time_spec="$1"; shift
+        msg="$*"
+        name="$(make_name "$msg")"
+        schedule at "$time_spec" "$SELF _say $(printf '%q' "$msg")" "$name"
+        ;;
+
+      in)
+        [ $# -lt 2 ] && { echo "Usage: crunch in <duration> <message>" >&2; exit 1; }
+        duration="$1"; shift
+        msg="$*"
+        name="$(make_name "$msg")"
+        schedule in "$duration" "$SELF _say $(printf '%q' "$msg")" "$name"
+        ;;
+
+      daily)
+        [ $# -lt 2 ] && { echo "Usage: crunch daily <time> <message>" >&2; exit 1; }
+        time_spec="$1"; shift
+        msg="$*"
+        name="$(make_name "$msg")"
+        schedule daily "$time_spec" "$SELF _say $(printf '%q' "$msg")" "$name"
+        ;;
+
+      weekly)
+        [ $# -lt 2 ] && { echo "Usage: crunch weekly <day> <time> <message>" >&2; exit 1; }
+        day_time="$1"; shift
+        msg="$*"
+        name="$(make_name "$msg")"
+        schedule weekly "$day_time" "$SELF _say $(printf '%q' "$msg")" "$name"
+        ;;
+
+      # ── AI crunch jobs ──
+      ai)
+        [ $# -lt 4 ] && { echo "Usage: crunch ai <pi|opencode> <at|in|daily|weekly> <time> <prompt>" >&2; exit 1; }
+        engine="$1"; sub_type="$2"; time_spec="$3"; shift 3
+        prompt="$*"
+        name="$(make_name "$prompt")"
+        schedule "$sub_type" "$time_spec" \
+          "$SELF _ai $engine $(printf '%q' "$prompt")" "$name"
+        ;;
+
+      # ── Management ──
+      list)
+        echo "Active crunch jobs:"
+        echo "───────────────────────────────────"
+        systemctl --user list-timers 'crunch-*' --no-pager 2>/dev/null \
+          | grep -E 'crunch-|^NEXT|^NEXT|^$' || echo "  (none)"
+        ;;
+
+      cancel)
+        [ $# -lt 1 ] && { echo "Usage: crunch cancel <name>" >&2; exit 1; }
+        name="$1"
+        # Accept with or without crunch- prefix
+        [[ "$name" != crunch-* ]] && name="crunch-$name"
+        systemctl --user stop "''${name}.timer" "''${name}.service" 2>/dev/null \
+          && echo "✓ Cancelled: $name" \
+          || echo "✗ Not found: $name"
+        ;;
+
+      purge)
+        echo "Purging fired one-shot jobs..."
+        local purged=0
+        for unit in $(systemctl --user list-units 'crunch-*' --all --plain --no-legend --no-pager 2>/dev/null | awk '{print $1}'); do
+          if systemctl --user is-failed "$unit" &>/dev/null; then
+            systemctl --user stop "$unit" 2>/dev/null || true
+            systemctl --user reset-failed "$unit" 2>/dev/null || true
+            echo "  Purged: $unit"
+            purged=$((purged + 1))
+          fi
+        done
+        echo "✓ Purged $purged unit(s)"
+        ;;
+
+      -h|--help|help)
+        usage
+        ;;
+
+      *)
+        echo "Unknown command: $cmd" >&2
+        echo ""
+        usage
+        exit 1
+        ;;
+    esac
+  '';
+in
+  stdenv.mkDerivation {
+    pname = "crunch";
+    version = "0.1.0";
+
+    dontUnpack = true;
+
+    installPhase = ''
+      mkdir -p "$out/bin"
+      ln -s ${script}/bin/crunch "$out/bin/crunch"
+    '';
+
+    meta = with lib; {
+      description = "Voice-notified reminders and AI crunch jobs via systemd transient timers";
+      homepage = "https://code.m3ta.dev/m3tam3re/nixpkgs";
+      license = licenses.mit;
+      platforms = platforms.linux;
+      mainProgram = "crunch";
+    };
+  }
diff --git a/pkgs/default.nix b/pkgs/default.nix
index cfc906a..9d8234c 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -34,6 +34,7 @@ in {
   zellij-ps = pkgs.callPackage ./zellij-ps {};
   vibetyper = pkgs.callPackage ./vibetyper {};
   talk = pkgs.callPackage ./talk {};
+  crunch = pkgs.callPackage ./crunch {};
 
   # ── Pass-through packages ──────────────────────────────────────────
   # Imported directly from flake inputs. No local modifications.