diff --git a/.github/workflows/quality.yml b/.github/workflows/quality.yml
index d918720c..ccfb431f 100644
--- a/.github/workflows/quality.yml
+++ b/.github/workflows/quality.yml
@@ -73,6 +73,14 @@ jobs:
       - name: Test scripts
         run: python3 -m pytest -q
 
+      - name: Set up locked APU simulation tools
+        uses: ./.github/actions/locked-tools
+        with:
+          tools: verilator sv2v iverilog
+
+      - name: Run APU P5 simulator acceptance
+        run: python3 -m pytest -q tests/test_apu_codec_transport.py
+
       - name: Lint YAML
         run: yamllint .github .yamllint.yml
 
diff --git a/Makefile b/Makefile
index 37de1123..c23316d7 100644
--- a/Makefile
+++ b/Makefile
@@ -707,4 +707,4 @@ regress-nightly:
 	python3 $(ROOT_PATH)/scripts/regress.py --root $(ROOT_PATH) --suite nightly
 
 sim-asm: asm
-	$(MAKE) SIM_FIRMWARE_NAME=$(ASM_FIRMWARE_NAME) sim
+	$(MAKE) SIM_FIRMWARE_NAME=$(ASM_FIRMWARE_NAME) sim
\ No newline at end of file
diff --git a/rtl/ip/multimedia/apb4_apu.sv b/rtl/ip/multimedia/apb4_apu.sv
index 72b5c8a6..c32fa48f 100644
--- a/rtl/ip/multimedia/apb4_apu.sv
+++ b/rtl/ip/multimedia/apb4_apu.sv
@@ -140,7 +140,7 @@ module apb4_apu (
   logic [31:0] s_dma_err_addr;
   logic s_dma_input_pending, s_dma_output_pending;
   logic [63:0] s_dma_read_bytes, s_dma_write_bytes;
-  logic s_dma_write_burst_done;
+  logic        s_dma_write_burst_done;
   logic [31:0] s_dma_write_burst_bytes;
   logic [63:0] s_dma_read_stalls, s_dma_write_stalls;
   logic s_scheduler_idle, s_scheduler_aborting, s_stream_idle;
diff --git a/rtl/ip/multimedia/apu_codec_controller.sv b/rtl/ip/multimedia/apu_codec_controller.sv
index 028ba108..dabe6ca2 100644
--- a/rtl/ip/multimedia/apu_codec_controller.sv
+++ b/rtl/ip/multimedia/apu_codec_controller.sv
@@ -329,8 +329,8 @@ module apu_codec_controller (
       fault_valid_o <= 1'b0;
       if (transport_job_done_i) s_transport_done_q <= 1'b1;
       if (soft_reset_i || resource_reset_apply_i) begin
-        s_state_q    <= Idle;
-        s_job_stat_q <= 32'd0;
+        s_state_q          <= Idle;
+        s_job_stat_q       <= 32'd0;
         s_transport_done_q <= 1'b0;
       end else begin
         unique case (s_state_q)
diff --git a/rtl/ip/multimedia/apu_codec_transport.sv b/rtl/ip/multimedia/apu_codec_transport.sv
index f9cae742..da769fa9 100644
--- a/rtl/ip/multimedia/apu_codec_transport.sv
+++ b/rtl/ip/multimedia/apu_codec_transport.sv
@@ -168,7 +168,7 @@ module apu_codec_transport (
   logic s_input_contract_ok, s_input_reservation_ok;
   logic s_output_contract_ok, s_output_capacity_error, s_output_cursor_overflow;
   logic s_job_result_contract_ok, s_frame_commit_contract_ok;
-  logic s_source_info_valid;
+  logic       s_source_info_valid;
   logic [1:0] s_output_channels;
   logic [3:0] s_output_frame_bytes;
   logic s_active_input, s_active_output, s_opposite_async_request;
@@ -180,9 +180,9 @@ module apu_codec_transport (
     logic [ 1:0] s_channels;
     logic [ 5:0] s_bits;
     begin
-      s_rate = source_info_i[16:0];
+      s_rate     = source_info_i[16:0];
       s_channels = source_info_i[18:17];
-      s_bits = source_info_i[24:19];
+      s_bits     = source_info_i[24:19];
       return (source_info_i[31:25] == 7'd0) &&
           (s_rate >= 17'd8000) && (s_rate <= 17'd96000) &&
           (s_channels inside {2'd1, 2'd2}) &&
@@ -258,27 +258,9 @@ module apu_codec_transport (
       ({1'b0, s_logical_output_q} + {1'b0, request_source1_i} <=
        {1'b0, s_output_cursor_q});
   assign s_source_info_valid = source_info_valid(memory_data_i);
-  assign s_req_trap_detail1 = {
-    request_detail_aux_i,
-    request_opcode_i,
-    4'd6,
-    request_pc_i,
-    8'd1
-  };
-  assign s_req_trap_detail5 = {
-    request_detail_aux_i,
-    request_opcode_i,
-    4'd6,
-    request_pc_i,
-    8'd5
-  };
-  assign s_req_trap_detail9 = {
-    request_detail_aux_i,
-    request_opcode_i,
-    4'd6,
-    request_pc_i,
-    8'd9
-  };
+  assign s_req_trap_detail1 = {request_detail_aux_i, request_opcode_i, 4'd6, request_pc_i, 8'd1};
+  assign s_req_trap_detail5 = {request_detail_aux_i, request_opcode_i, 4'd6, request_pc_i, 8'd5};
+  assign s_req_trap_detail9 = {request_detail_aux_i, request_opcode_i, 4'd6, request_pc_i, 8'd9};
   assign s_active_trap_detail5 = {1'b0, s_req_aux_q, s_opcode_q, 4'd6, s_pc_q, 8'd5};
   assign s_active_trap_detail9 = {1'b0, s_req_aux_q, s_opcode_q, 4'd6, s_pc_q, 8'd9};
   assign s_output_channels = (s_descriptor_q[0][9:8] == 2'd1) ? 2'd2 :
diff --git a/rtl/mini/formal/apu_codec_formal.sv b/rtl/mini/formal/apu_codec_formal.sv
index e444a4b1..4563390a 100644
--- a/rtl/mini/formal/apu_codec_formal.sv
+++ b/rtl/mini/formal/apu_codec_formal.sv
@@ -5,7 +5,7 @@ module apu_codec_formal_design (
     input  logic        clk_i,
     output logic        rst_n_i,
     output logic        f_past_valid,
-    output logic [2:0]  scenario,
+    output logic [ 2:0] scenario,
     output logic [ 5:0] cycle,
     output logic        block_new,
     output logic        context_ready,
@@ -18,11 +18,11 @@ module apu_codec_formal_design (
     output logic        memory_claim,
     output logic        memory_request,
     output logic        fault_valid,
-    output logic [5:0]  fault_code,
-    output logic [3:0]  fault_stage,
+    output logic [ 5:0] fault_code,
+    output logic [ 3:0] fault_stage,
     output logic [31:0] fault_detail
 );
-  (* anyconst *)logic   [2:0]  f_scenario;
+  (* anyconst *)logic [   2:0] f_scenario;
   logic [   5:0] s_cycle_q;
   logic [1023:0] s_descriptor;
 
@@ -46,7 +46,7 @@ module apu_codec_formal_design (
   );
 
   always_comb begin
-    s_descriptor = '0;
+    s_descriptor             = '0;
     s_descriptor[(2*32)+:32] = 32'h1000_0000;
     s_descriptor[(3*32)+:32] = 32'd64;
     s_descriptor[(4*32)+:32] = 32'h2000_0000;
diff --git a/rtl/mini/formal/apu_codec_formal_props.sv b/rtl/mini/formal/apu_codec_formal_props.sv
index ec42cacc..2dfcc6e5 100644
--- a/rtl/mini/formal/apu_codec_formal_props.sv
+++ b/rtl/mini/formal/apu_codec_formal_props.sv
@@ -9,9 +9,9 @@ module apu_codec_formal;
   wire block_new, context_ready, request_valid, request_ready;
   wire dma_request_valid, dma_request_ready, memory_claim, memory_request;
   wire [31:0] dma_request_addr, dma_request_bytes;
-  wire fault_valid;
-  wire [5:0] fault_code;
-  wire [3:0] fault_stage;
+  wire        fault_valid;
+  wire [ 5:0] fault_code;
+  wire [ 3:0] fault_stage;
   wire [31:0] fault_detail;
 
   apu_codec_formal_design u_design (.*);
@@ -49,7 +49,6 @@ module apu_codec_formal;
     cover (rst_n_i && dma_request_valid && !block_new && (cycle >= 6'd22));
     cover (rst_n_i && block_new && request_valid && !request_ready);
     cover (rst_n_i && (scenario == 3'd1) && fault_valid && (fault_detail[7:0] == 8'd5));
-    cover (rst_n_i && (scenario == 3'd2) && fault_valid &&
-           (fault_detail[15:0] == 16'h0051));
+    cover (rst_n_i && (scenario == 3'd2) && fault_valid && (fault_detail[15:0] == 16'h0051));
   end
 endmodule
diff --git a/rtl/mini/mk/formal.mk b/rtl/mini/mk/formal.mk
index 58ac84af..b9ef51d6 100644
--- a/rtl/mini/mk/formal.mk
+++ b/rtl/mini/mk/formal.mk
@@ -220,14 +220,14 @@ $(FORMAL_DIR)/%/prove.sby: $(FORMAL_DIR)/%/design.v \
 	$(FORMAL_SBY_GENERATOR)
 	python3 $(FORMAL_SBY_GENERATOR) --top $(FORMAL_TARGET_TOP)_formal --input $< \
 		--properties $(RTL_PATH)/formal/$(FORMAL_TARGET_TOP)_formal_props.sv --solver $(FORMAL_SOLVER) \
-	--mode $(if $(filter dma apu apu_codec apu_primitives apu_sequencer $(FORMAL_APU_LOADER_TARGETS) $(FORMAL_APU_PRIMITIVE_TARGETS) gateway_a sdio onchip_ram,$*),bmc,prove) --depth $(if $(filter pll_rcu,$*),$(FORMAL_PLL_RCU_DEPTH),$(if $(filter dma,$*),$(FORMAL_DMA_DEPTH),$(if $(filter apu apu_codec apu_primitives apu_sequencer $(FORMAL_APU_LOADER_TARGETS) $(FORMAL_APU_PRIMITIVE_TARGETS),$*),$(FORMAL_APU_TARGET_DEPTH),$(if $(filter gateway_a,$*),$(FORMAL_GATEWAY_A_DEPTH),$(if $(filter sdio,$*),$(FORMAL_SDIO_DEPTH),$(if $(filter opipsram,$*),$(FORMAL_OPIPSRAM_DEPTH),$(if $(filter ws2812,$*),$(FORMAL_WS2812_DEPTH),$(if $(filter i2c,$*),$(FORMAL_I2C_DEPTH),$(if $(filter clint,$*),$(FORMAL_CLINT_DEPTH),$(if $(filter psram,$*),$(FORMAL_PSRAM_DEPTH),$(FORMAL_DEPTH))))))))))) --output $@
+		--mode $(if $(filter dma apu apu_codec apu_primitives apu_sequencer $(FORMAL_APU_LOADER_TARGETS) $(FORMAL_APU_PRIMITIVE_TARGETS) gateway_a sdio onchip_ram,$*),bmc,prove) --depth $(if $(filter pll_rcu,$*),$(FORMAL_PLL_RCU_DEPTH),$(if $(filter dma,$*),$(FORMAL_DMA_DEPTH),$(if $(filter apu apu_codec apu_primitives apu_sequencer $(FORMAL_APU_LOADER_TARGETS) $(FORMAL_APU_PRIMITIVE_TARGETS),$*),$(FORMAL_APU_TARGET_DEPTH),$(if $(filter gateway_a,$*),$(FORMAL_GATEWAY_A_DEPTH),$(if $(filter sdio,$*),$(FORMAL_SDIO_DEPTH),$(if $(filter opipsram,$*),$(FORMAL_OPIPSRAM_DEPTH),$(if $(filter ws2812,$*),$(FORMAL_WS2812_DEPTH),$(if $(filter i2c,$*),$(FORMAL_I2C_DEPTH),$(if $(filter clint,$*),$(FORMAL_CLINT_DEPTH),$(if $(filter psram,$*),$(FORMAL_PSRAM_DEPTH),$(FORMAL_DEPTH))))))))))) --output $@
 	@if [ "$*" = opipsram ]; then sed -i '/^async2sync/i clk2fflogic' $@; fi
 
 $(FORMAL_DIR)/%/cover.sby: $(FORMAL_DIR)/%/design.v \
 	$(FORMAL_SBY_GENERATOR)
 	python3 $(FORMAL_SBY_GENERATOR) --top $(FORMAL_TARGET_TOP)_formal --input $< \
 		--properties $(RTL_PATH)/formal/$(FORMAL_TARGET_TOP)_formal_props.sv --solver $(FORMAL_SOLVER) \
-	--mode cover --depth $(if $(filter pll_rcu,$*),$(FORMAL_PLL_RCU_DEPTH),$(if $(filter dma,$*),$(FORMAL_DMA_COVER_DEPTH),$(if $(filter apu apu_codec apu_primitives apu_sequencer $(FORMAL_APU_LOADER_TARGETS) $(FORMAL_APU_PRIMITIVE_TARGETS),$*),$(FORMAL_APU_TARGET_COVER_DEPTH),$(if $(filter gateway_a,$*),$(FORMAL_GATEWAY_A_DEPTH),$(if $(filter sdio,$*),$(FORMAL_SDIO_COVER_DEPTH),$(if $(filter opipsram,$*),$(FORMAL_OPIPSRAM_DEPTH),$(if $(filter ws2812,$*),$(FORMAL_WS2812_DEPTH),$(if $(filter i2c,$*),$(FORMAL_I2C_DEPTH),$(if $(filter clint,$*),$(FORMAL_CLINT_DEPTH),$(if $(filter psram,$*),$(FORMAL_PSRAM_DEPTH),$(FORMAL_DEPTH))))))))))) \
+		--mode cover --depth $(if $(filter pll_rcu,$*),$(FORMAL_PLL_RCU_DEPTH),$(if $(filter dma,$*),$(FORMAL_DMA_COVER_DEPTH),$(if $(filter apu apu_codec apu_primitives apu_sequencer $(FORMAL_APU_LOADER_TARGETS) $(FORMAL_APU_PRIMITIVE_TARGETS),$*),$(FORMAL_APU_TARGET_COVER_DEPTH),$(if $(filter gateway_a,$*),$(FORMAL_GATEWAY_A_DEPTH),$(if $(filter sdio,$*),$(FORMAL_SDIO_COVER_DEPTH),$(if $(filter opipsram,$*),$(FORMAL_OPIPSRAM_DEPTH),$(if $(filter ws2812,$*),$(FORMAL_WS2812_DEPTH),$(if $(filter i2c,$*),$(FORMAL_I2C_DEPTH),$(if $(filter clint,$*),$(FORMAL_CLINT_DEPTH),$(if $(filter psram,$*),$(FORMAL_PSRAM_DEPTH),$(FORMAL_DEPTH))))))))))) \
 		$(if $(filter $(FORMAL_COMPACT_COVER_TARGETS),$*),--no-vcd) --output $@
 	@if [ "$*" = opipsram ]; then sed -i '/^async2sync/i clk2fflogic' $@; fi
 
@@ -340,4 +340,4 @@ formal-doctor:
 formal-clean:
 	python3 $(ROOT_PATH)/scripts/clean.py --root $(ROOT_PATH) --path $(FORMAL_DIR)
 
-.PHONY: formal formal-bus formal-rib-adapter formal-rib2apb formal-sysctrl formal-pll-rcu formal-gpio formal-ws2812 formal-uart formal-i2c formal-timer formal-clint formal-dvp formal-i2s formal-psram formal-onchip-ram formal-opipsram formal-dma formal-apu formal-apu-loader formal-apu-sequencer formal-gateway-a formal-sdio formal-doctor formal-clean
+.PHONY: formal formal-bus formal-rib-adapter formal-rib2apb formal-sysctrl formal-pll-rcu formal-gpio formal-ws2812 formal-uart formal-i2c formal-timer formal-clint formal-dvp formal-i2s formal-psram formal-onchip-ram formal-opipsram formal-dma formal-apu formal-apu-loader formal-apu-sequencer formal-gateway-a formal-sdio formal-doctor formal-clean
\ No newline at end of file
diff --git a/tests/rtl/apu_dma_tb.sv b/tests/rtl/apu_dma_tb.sv
index 37d333a4..ddf9d060 100644
--- a/tests/rtl/apu_dma_tb.sv
+++ b/tests/rtl/apu_dma_tb.sv
@@ -45,9 +45,9 @@ module apu_dma_tb;
   logic       allow_write_response = 1'b1;
   logic [7:0] source_last_index = 8'd0;
   int unsigned read_bursts, write_bursts;
-  int unsigned write_burst_completions;
-  logic [63:0] successful_write_burst_bytes;
-  string s_phase;
+  int unsigned        write_burst_completions;
+  logic        [63:0] successful_write_burst_bytes;
+  string              s_phase;
 
   axi4_if #(
       .ADDR_WIDTH(32),
@@ -190,7 +190,7 @@ module apu_dma_tb;
         write_bursts <= write_bursts + 1;
       end
       if (write_burst_done_o) begin
-        write_burst_completions <= write_burst_completions + 1;
+        write_burst_completions      <= write_burst_completions + 1;
         successful_write_burst_bytes <= successful_write_burst_bytes + write_burst_bytes_o;
       end
       if (axi4.wvalid && axi4.wready) begin
diff --git a/tests/rtl/apu_p5_integration_tb.sv b/tests/rtl/apu_p5_integration_tb.sv
index 6457875e..909864a3 100644
--- a/tests/rtl/apu_p5_integration_tb.sv
+++ b/tests/rtl/apu_p5_integration_tb.sv
@@ -138,7 +138,7 @@ module apu_p5_integration_tb;
       end
       if (i2s_tx_axis.tvalid && i2s_tx_axis.tready) begin
         tx_data_q[tx_count_q] <= i2s_tx_axis.tdata;
-        tx_count_q <= tx_count_q + 1'b1;
+        tx_count_q            <= tx_count_q + 1'b1;
         if (i2s_tx_axis.tlast) begin
           tx_last_q       <= 1'b1;
           tx_last_count_q <= tx_last_count_q + 1'b1;
diff --git a/tests/rtl/apu_p5_transport_tb.sv b/tests/rtl/apu_p5_transport_tb.sv
index 5edb936f..2654fa3f 100644
--- a/tests/rtl/apu_p5_transport_tb.sv
+++ b/tests/rtl/apu_p5_transport_tb.sv
@@ -26,8 +26,8 @@ module apu_p5_transport_tb;
   logic dma_done, dma_error;
   logic dma_error_q, dma_write_burst_done_q, dma_write_active_q, dma_fault_after_prefix_q;
   logic [31:0] dma_write_burst_bytes_q;
-  logic [6:0] dma_write_beat_q;
-  logic tx_ready_q;
+  logic [ 6:0] dma_write_beat_q;
+  logic        tx_ready_q;
   logic fault_valid, event_input, event_output, tx_active, input_pending, output_pending;
   logic [5:0] fault_code;
   logic [3:0] fault_stage;
diff --git a/tests/rtl/axi4_target_guard_tb.sv b/tests/rtl/axi4_target_guard_tb.sv
index f1b027a9..32d95cfb 100644
--- a/tests/rtl/axi4_target_guard_tb.sv
+++ b/tests/rtl/axi4_target_guard_tb.sv
@@ -74,8 +74,8 @@ module axi4_target_guard_tb;
     end
   endtask
 
-  task automatic return_read_beat(input logic [5:0] id, input logic last,
-                                  input logic expected_last, input logic [1:0] expected_resp);
+  task automatic return_read_beat(input logic [5:0] id, input logic last, input logic expected_last,
+                                  input logic [1:0] expected_resp);
     begin
       @(negedge clk_i);
       sink.rid    = id;
diff --git a/tests/test_apu_codec_transport.py b/tests/test_apu_codec_transport.py
index a9772480..a71771a9 100644
--- a/tests/test_apu_codec_transport.py
+++ b/tests/test_apu_codec_transport.py
@@ -9,6 +9,8 @@ from pathlib import Path
 import shutil
 import subprocess
 
+import pytest
+
 
 ROOT = Path(__file__).resolve().parents[1]
 sys.path.insert(0, str(ROOT / "scripts"))
@@ -88,7 +90,7 @@ def test_p5_production_transport_matches_icarus_and_verilator(tmp_path: Path) ->
     sv2v = shutil.which("sv2v")
     verilator = shutil.which("verilator")
     if None in (iverilog, vvp, sv2v, verilator):
-        raise RuntimeError("P5 requires Icarus, vvp, sv2v, and Verilator")
+        pytest.skip("P5 requires Icarus, vvp, sv2v, and Verilator")
     common = ROOT / "rtl/managed/clusterip/common/rtl"
     multimedia = ROOT / "rtl/ip/multimedia"
     filelist = tmp_path / "apu_p5_transport.fl"
@@ -161,7 +163,7 @@ def test_p5_direct_wav_uses_product_loader_dma_sequencer_and_tx(tmp_path: Path)
     sv2v = shutil.which("sv2v")
     verilator = shutil.which("verilator")
     if None in (iverilog, vvp, sv2v, verilator):
-        raise RuntimeError("P5 integration requires Icarus, vvp, sv2v, and Verilator")
+        pytest.skip("P5 integration requires Icarus, vvp, sv2v, and Verilator")
     multimedia = ROOT / "rtl/ip/multimedia"
     common = ROOT / "rtl/managed/clusterip/common/rtl"
     assembly = assemble(
diff --git a/tests/test_script_tools.py b/tests/test_script_tools.py
index c227fd63..6621c6ee 100644
--- a/tests/test_script_tools.py
+++ b/tests/test_script_tools.py
@@ -1434,6 +1434,13 @@ def test_nightly_workflow_splits_netsim_from_extended_recipes() -> None:
     assert "--suite nightly-extra --pdk IHP130 --behavioral-only --dry-run" in quality
 
 
+def test_quality_runs_p5_with_locked_open_source_simulators() -> None:
+    quality = (ROOT / ".github/workflows/quality.yml").read_text()
+
+    assert "tools: verilator sv2v iverilog" in quality
+    assert "python3 -m pytest -q tests/test_apu_codec_transport.py" in quality
+
+
 def test_regression_observations_do_not_block_or_skip_metrics(
     monkeypatch, tmp_path: Path, capsys
 ) -> None: