diff --git a/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/MODULE.bazel b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/MODULE.bazel
new file mode 100644
index 00000000000..97af3748b48
--- /dev/null
+++ b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/MODULE.bazel
@@ -0,0 +1,24 @@
+module(
+    name = "seastar",
+    version = "25.08.0-20250807194611-1520326e6032.bcr.1",
+    bazel_compatibility = [">=7.2.1"],
+    compatibility_level = 0,
+)
+
+bazel_dep(name = "bazel_skylib", version = "1.8.2")
+bazel_dep(name = "protobuf", version = "31.1")
+bazel_dep(name = "rules_cc", version = "0.2.4")
+bazel_dep(name = "rules_proto", version = "7.1.0")
+bazel_dep(name = "rules_python", version = "1.5.1")
+bazel_dep(name = "boost.algorithm", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.asio", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.endian", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.intrusive", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.lockfree", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.program_options", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.thread", version = "1.89.0.bcr.1")
+bazel_dep(name = "c-ares", version = "1.34.5")
+bazel_dep(name = "fmt", version = "9.1.0")
+bazel_dep(name = "liburing", version = "2.10")
+bazel_dep(name = "lz4", version = "1.9.4.bcr.1")
+bazel_dep(name = "yaml-cpp", version = "0.8.0")
diff --git a/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/overlay/BUILD.bazel b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/overlay/BUILD.bazel
new file mode 100644
index 00000000000..7082f8fcafd
--- /dev/null
+++ b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/overlay/BUILD.bazel
@@ -0,0 +1,613 @@
+load("@bazel_skylib//rules:common_settings.bzl", "bool_flag", "int_flag")
+load("@protobuf//bazel:cc_proto_library.bzl", "cc_proto_library")
+load("@rules_cc//cc:cc_library.bzl", "cc_library")
+load("@rules_proto//proto:defs.bzl", "proto_library")
+load("@rules_python//python:defs.bzl", "py_binary")
+
+bool_flag(
+    name = "stack_guards",
+    build_setting_default = False,
+)
+
+bool_flag(
+    name = "task_backtrace",
+    build_setting_default = False,
+)
+
+bool_flag(
+    name = "heap_profiling",
+    build_setting_default = True,
+)
+
+bool_flag(
+    name = "logger_compile_time_fmt",
+    build_setting_default = True,
+)
+
+bool_flag(
+    name = "debug_allocations",
+    build_setting_default = False,
+)
+
+bool_flag(
+    name = "sstring",
+    build_setting_default = True,
+)
+
+bool_flag(
+    name = "io_uring",
+    build_setting_default = True,
+)
+
+bool_flag(
+    name = "system_allocator",
+    build_setting_default = False,
+)
+
+bool_flag(
+    name = "debug",
+    build_setting_default = False,
+)
+
+bool_flag(
+    name = "shuffle_task_queue",
+    build_setting_default = False,
+)
+
+int_flag(
+    name = "api_level",
+    build_setting_default = 7,
+    make_variable = "API_LEVEL",
+)
+
+int_flag(
+    name = "scheduling_groups",
+    build_setting_default = 16,
+    make_variable = "SCHEDULING_GROUPS",
+)
+
+config_setting(
+    name = "use_stack_guards",
+    flag_values = {
+        ":stack_guards": "true",
+    },
+)
+
+config_setting(
+    name = "use_sstring",
+    flag_values = {
+        ":sstring": "true",
+    },
+)
+
+config_setting(
+    name = "use_logger_compile_time_fmt",
+    flag_values = {
+        ":logger_compile_time_fmt": "true",
+    },
+)
+
+config_setting(
+    name = "use_task_backtrace",
+    flag_values = {
+        ":task_backtrace": "true",
+    },
+)
+
+config_setting(
+    name = "use_debug_allocations",
+    flag_values = {
+        ":debug_allocations": "true",
+    },
+)
+
+config_setting(
+    name = "use_io_uring",
+    flag_values = {
+        ":io_uring": "true",
+    },
+)
+
+config_setting(
+    name = "use_heap_profiling",
+    flag_values = {
+        ":heap_profiling": "true",
+    },
+)
+
+config_setting(
+    name = "use_system_allocator",
+    flag_values = {
+        ":system_allocator": "true",
+    },
+)
+
+config_setting(
+    name = "with_debug",
+    flag_values = {
+        ":debug": "true",
+    },
+)
+
+config_setting(
+    name = "with_shuffle_task_queue",
+    flag_values = {
+        ":shuffle_task_queue": "true",
+    },
+)
+
+py_binary(
+    name = "seastar-json2code",
+    srcs = ["scripts/seastar-json2code.py"],
+    visibility = ["//visibility:public"],
+)
+
+genrule(
+    name = "http_request_parser",
+    srcs = ["src/http/request_parser.rl"],
+    outs = ["include/seastar/http/request_parser.hh"],
+    cmd = "ragel -G2 -o $@ $(SRCS)",
+)
+
+genrule(
+    name = "http_response_parser",
+    srcs = ["src/http/response_parser.rl"],
+    outs = ["include/seastar/http/response_parser.hh"],
+    cmd = "ragel -G2 -o $@ $(SRCS)",
+)
+
+genrule(
+    name = "http_chunk_parsers",
+    srcs = ["src/http/chunk_parsers.rl"],
+    outs = ["include/seastar/http/chunk_parsers.hh"],
+    cmd = "ragel -G2 -o $@ $(SRCS)",
+)
+
+proto_library(
+    name = "metrics_proto",
+    srcs = ["src/proto/metrics2.proto"],
+    deps = ["@protobuf//:timestamp_proto"],
+)
+
+cc_proto_library(
+    name = "metrics_cc_proto",
+    deps = [":metrics_proto"],
+)
+
+cc_library(
+    name = "seastar",
+    srcs = [
+        "src/core/alien.cc",
+        "src/core/app-template.cc",
+        "src/core/cgroup.hh",
+        "src/core/condition-variable.cc",
+        "src/core/disk_params.cc",
+        "src/core/dpdk_rte.cc",
+        "src/core/exception_hacks.cc",
+        "src/core/execution_stage.cc",
+        "src/core/fair_queue.cc",
+        "src/core/file.cc",
+        "src/core/file-impl.hh",
+        "src/core/fsnotify.cc",
+        "src/core/fsqual.cc",
+        "src/core/fstream.cc",
+        "src/core/future.cc",
+        "src/core/future-util.cc",
+        "src/core/io_queue.cc",
+        "src/core/linux-aio.cc",
+        "src/core/memory.cc",
+        "src/core/metrics.cc",
+        "src/core/on_internal_error.cc",
+        "src/core/posix.cc",
+        "src/core/prefault.hh",
+        "src/core/program_options.cc",
+        "src/core/program_options.hh",
+        "src/core/prometheus.cc",
+        "src/core/reactor.cc",
+        "src/core/reactor_backend.cc",
+        "src/core/reactor_backend.hh",
+        "src/core/resource.cc",
+        "src/core/scollectd.cc",
+        "src/core/scollectd-impl.hh",
+        "src/core/semaphore.cc",
+        "src/core/sharded.cc",
+        "src/core/signal.cc",
+        "src/core/smp.cc",
+        "src/core/sstring.cc",
+        "src/core/syscall_result.hh",
+        "src/core/syscall_work_queue.hh",
+        "src/core/systemwide_memory_barrier.cc",
+        "src/core/thread.cc",
+        "src/core/thread_pool.cc",
+        "src/core/thread_pool.hh",
+        "src/core/uname.cc",
+        "src/core/vla.hh",
+        "src/http/api_docs.cc",
+        "src/http/client.cc",
+        "src/http/common.cc",
+        "src/http/file_handler.cc",
+        "src/http/httpd.cc",
+        "src/http/json_path.cc",
+        "src/http/matcher.cc",
+        "src/http/mime_types.cc",
+        "src/http/reply.cc",
+        "src/http/request.cc",
+        "src/http/routes.cc",
+        "src/http/transformers.cc",
+        "src/http/url.cc",
+        "src/json/formatter.cc",
+        "src/json/json_elements.cc",
+        "src/net/arp.cc",
+        "src/net/config.cc",
+        "src/net/dhcp.cc",
+        "src/net/dns.cc",
+        "src/net/dpdk.cc",
+        "src/net/ethernet.cc",
+        "src/net/inet_address.cc",
+        "src/net/ip.cc",
+        "src/net/ip_checksum.cc",
+        "src/net/native-stack.cc",
+        "src/net/native-stack-impl.hh",
+        "src/net/net.cc",
+        "src/net/packet.cc",
+        "src/net/posix-stack.cc",
+        "src/net/proxy.cc",
+        "src/net/socket_address.cc",
+        "src/net/stack.cc",
+        "src/net/tcp.cc",
+        "src/net/tls.cc",
+        "src/net/udp.cc",
+        "src/net/unix_address.cc",
+        "src/net/virtio.cc",
+        "src/rpc/lz4_compressor.cc",
+        "src/rpc/lz4_fragmented_compressor.cc",
+        "src/rpc/rpc.cc",
+        "src/util/alloc_failure_injector.cc",
+        "src/util/backtrace.cc",
+        "src/util/conversions.cc",
+        "src/util/exceptions.cc",
+        "src/util/file.cc",
+        "src/util/log.cc",
+        "src/util/process.cc",
+        "src/util/program-options.cc",
+        "src/util/read_first_line.cc",
+        "src/util/short_streams.cc",
+        "src/util/tmp_file.cc",
+        "src/websocket/common.cc",
+        "src/websocket/parser.cc",
+        "src/websocket/server.cc",
+    ],
+    hdrs = [
+        "include/seastar/core/abort_on_ebadf.hh",
+        "include/seastar/core/abort_on_expiry.hh",
+        "include/seastar/core/abort_source.hh",
+        "include/seastar/core/abortable_fifo.hh",
+        "include/seastar/core/alien.hh",
+        "include/seastar/core/align.hh",
+        "include/seastar/core/aligned_buffer.hh",
+        "include/seastar/core/app-template.hh",
+        "include/seastar/core/array_map.hh",
+        "include/seastar/core/bitops.hh",
+        "include/seastar/core/bitset-iter.hh",
+        "include/seastar/core/byteorder.hh",
+        "include/seastar/core/cacheline.hh",
+        "include/seastar/core/checked_ptr.hh",
+        "include/seastar/core/chunked_fifo.hh",
+        "include/seastar/core/circular_buffer.hh",
+        "include/seastar/core/circular_buffer_fixed_capacity.hh",
+        "include/seastar/core/condition-variable.hh",
+        "include/seastar/core/coroutine.hh",
+        "include/seastar/core/deleter.hh",
+        "include/seastar/core/disk_params.hh",
+        "include/seastar/core/distributed.hh",
+        "include/seastar/core/do_with.hh",
+        "include/seastar/core/dpdk_rte.hh",
+        "include/seastar/core/enum.hh",
+        "include/seastar/core/exception_hacks.hh",
+        "include/seastar/core/execution_stage.hh",
+        "include/seastar/core/expiring_fifo.hh",
+        "include/seastar/core/fair_queue.hh",
+        "include/seastar/core/file.hh",
+        "include/seastar/core/file-types.hh",
+        "include/seastar/core/format.hh",
+        "include/seastar/core/fsnotify.hh",
+        "include/seastar/core/fsqual.hh",
+        "include/seastar/core/fstream.hh",
+        "include/seastar/core/function_traits.hh",
+        "include/seastar/core/future.hh",
+        "include/seastar/core/future-util.hh",
+        "include/seastar/core/gate.hh",
+        "include/seastar/core/idle_cpu_handler.hh",
+        "include/seastar/core/internal/api-level.hh",
+        "include/seastar/core/internal/buffer_allocator.hh",
+        "include/seastar/core/internal/estimated_histogram.hh",
+        "include/seastar/core/internal/io_desc.hh",
+        "include/seastar/core/internal/io_intent.hh",
+        "include/seastar/core/internal/io_request.hh",
+        "include/seastar/core/internal/io_sink.hh",
+        "include/seastar/core/internal/poll.hh",
+        "include/seastar/core/internal/pollable_fd.hh",
+        "include/seastar/core/internal/read_state.hh",
+        "include/seastar/core/internal/run_in_background.hh",
+        "include/seastar/core/internal/stall_detector.hh",
+        "include/seastar/core/internal/uname.hh",
+        "include/seastar/core/io_intent.hh",
+        "include/seastar/core/io_priority_class.hh",
+        "include/seastar/core/io_queue.hh",
+        "include/seastar/core/iostream.hh",
+        "include/seastar/core/iostream-impl.hh",
+        "include/seastar/core/layered_file.hh",
+        "include/seastar/core/linux-aio.hh",
+        "include/seastar/core/loop.hh",
+        "include/seastar/core/lowres_clock.hh",
+        "include/seastar/core/make_task.hh",
+        "include/seastar/core/manual_clock.hh",
+        "include/seastar/core/map_reduce.hh",
+        "include/seastar/core/memory.hh",
+        "include/seastar/core/metrics.hh",
+        "include/seastar/core/metrics_api.hh",
+        "include/seastar/core/metrics_registration.hh",
+        "include/seastar/core/metrics_types.hh",
+        "include/seastar/core/on_internal_error.hh",
+        "include/seastar/core/pipe.hh",
+        "include/seastar/core/polymorphic_temporary_buffer.hh",
+        "include/seastar/core/posix.hh",
+        "include/seastar/core/preempt.hh",
+        "include/seastar/core/prefetch.hh",
+        "include/seastar/core/print.hh",
+        "include/seastar/core/prometheus.hh",
+        "include/seastar/core/queue.hh",
+        "include/seastar/core/ragel.hh",
+        "include/seastar/core/reactor.hh",
+        "include/seastar/core/reactor_config.hh",
+        "include/seastar/core/relabel_config.hh",
+        "include/seastar/core/report_exception.hh",
+        "include/seastar/core/resource.hh",
+        "include/seastar/core/rwlock.hh",
+        "include/seastar/core/scattered_message.hh",
+        "include/seastar/core/scheduling.hh",
+        "include/seastar/core/scheduling_specific.hh",
+        "include/seastar/core/scollectd.hh",
+        "include/seastar/core/scollectd_api.hh",
+        "include/seastar/core/seastar.hh",
+        "include/seastar/core/semaphore.hh",
+        "include/seastar/core/shard_id.hh",
+        "include/seastar/core/sharded.hh",
+        "include/seastar/core/shared_future.hh",
+        "include/seastar/core/shared_mutex.hh",
+        "include/seastar/core/shared_ptr.hh",
+        "include/seastar/core/shared_ptr_debug_helper.hh",
+        "include/seastar/core/shared_ptr_incomplete.hh",
+        "include/seastar/core/signal.hh",
+        "include/seastar/core/simple-stream.hh",
+        "include/seastar/core/slab.hh",
+        "include/seastar/core/sleep.hh",
+        "include/seastar/core/smp.hh",
+        "include/seastar/core/smp_options.hh",
+        "include/seastar/core/sstring.hh",
+        "include/seastar/core/stall_sampler.hh",
+        "include/seastar/core/stream.hh",
+        "include/seastar/core/systemwide_memory_barrier.hh",
+        "include/seastar/core/task.hh",
+        "include/seastar/core/temporary_buffer.hh",
+        "include/seastar/core/thread.hh",
+        "include/seastar/core/thread_cputime_clock.hh",
+        "include/seastar/core/thread_impl.hh",
+        "include/seastar/core/timed_out_error.hh",
+        "include/seastar/core/timer.hh",
+        "include/seastar/core/timer-set.hh",
+        "include/seastar/core/transfer.hh",
+        "include/seastar/core/unaligned.hh",
+        "include/seastar/core/units.hh",
+        "include/seastar/core/vector-data-sink.hh",
+        "include/seastar/core/weak_ptr.hh",
+        "include/seastar/core/when_all.hh",
+        "include/seastar/core/when_any.hh",
+        "include/seastar/core/with_scheduling_group.hh",
+        "include/seastar/core/with_timeout.hh",
+        "include/seastar/coroutine/all.hh",
+        "include/seastar/coroutine/as_future.hh",
+        "include/seastar/coroutine/exception.hh",
+        "include/seastar/coroutine/generator.hh",
+        "include/seastar/coroutine/maybe_yield.hh",
+        "include/seastar/coroutine/parallel_for_each.hh",
+        "include/seastar/coroutine/switch_to.hh",
+        "include/seastar/http/api_docs.hh",
+        "include/seastar/http/chunk_parsers.hh",
+        "include/seastar/http/client.hh",
+        "include/seastar/http/common.hh",
+        "include/seastar/http/connection_factory.hh",
+        "include/seastar/http/exception.hh",
+        "include/seastar/http/file_handler.hh",
+        "include/seastar/http/function_handlers.hh",
+        "include/seastar/http/handlers.hh",
+        "include/seastar/http/httpd.hh",
+        "include/seastar/http/internal/content_source.hh",
+        "include/seastar/http/json_path.hh",
+        "include/seastar/http/matcher.hh",
+        "include/seastar/http/matchrules.hh",
+        "include/seastar/http/mime_types.hh",
+        "include/seastar/http/reply.hh",
+        "include/seastar/http/request.hh",
+        "include/seastar/http/request_parser.hh",
+        "include/seastar/http/response_parser.hh",
+        "include/seastar/http/routes.hh",
+        "include/seastar/http/short_streams.hh",
+        "include/seastar/http/transformers.hh",
+        "include/seastar/http/url.hh",
+        "include/seastar/json/formatter.hh",
+        "include/seastar/json/json_elements.hh",
+        "include/seastar/net/api.hh",
+        "include/seastar/net/arp.hh",
+        "include/seastar/net/byteorder.hh",
+        "include/seastar/net/config.hh",
+        "include/seastar/net/const.hh",
+        "include/seastar/net/dhcp.hh",
+        "include/seastar/net/dns.hh",
+        "include/seastar/net/dpdk.hh",
+        "include/seastar/net/ethernet.hh",
+        "include/seastar/net/inet_address.hh",
+        "include/seastar/net/ip.hh",
+        "include/seastar/net/ip_checksum.hh",
+        "include/seastar/net/ipv4_address.hh",
+        "include/seastar/net/ipv6_address.hh",
+        "include/seastar/net/native-stack.hh",
+        "include/seastar/net/net.hh",
+        "include/seastar/net/packet.hh",
+        "include/seastar/net/packet-data-source.hh",
+        "include/seastar/net/packet-util.hh",
+        "include/seastar/net/posix-stack.hh",
+        "include/seastar/net/proxy.hh",
+        "include/seastar/net/socket_defs.hh",
+        "include/seastar/net/stack.hh",
+        "include/seastar/net/tcp.hh",
+        "include/seastar/net/tcp-stack.hh",
+        "include/seastar/net/tls.hh",
+        "include/seastar/net/toeplitz.hh",
+        "include/seastar/net/udp.hh",
+        "include/seastar/net/unix_address.hh",
+        "include/seastar/net/virtio.hh",
+        "include/seastar/net/virtio-interface.hh",
+        "include/seastar/rpc/lz4_compressor.hh",
+        "include/seastar/rpc/lz4_fragmented_compressor.hh",
+        "include/seastar/rpc/multi_algo_compressor_factory.hh",
+        "include/seastar/rpc/rpc.hh",
+        "include/seastar/rpc/rpc_impl.hh",
+        "include/seastar/rpc/rpc_types.hh",
+        "include/seastar/util/alloc_failure_injector.hh",
+        "include/seastar/util/assert.hh",
+        "include/seastar/util/backtrace.hh",
+        "include/seastar/util/bool_class.hh",
+        "include/seastar/util/closeable.hh",
+        "include/seastar/util/conversions.hh",
+        "include/seastar/util/critical_alloc_section.hh",
+        "include/seastar/util/defer.hh",
+        "include/seastar/util/eclipse.hh",
+        "include/seastar/util/exceptions.hh",
+        "include/seastar/util/file.hh",
+        "include/seastar/util/function_input_iterator.hh",
+        "include/seastar/util/indirect.hh",
+        "include/seastar/util/internal/iovec_utils.hh",
+        "include/seastar/util/internal/magic.hh",
+        "include/seastar/util/iostream.hh",
+        "include/seastar/util/is_smart_ptr.hh",
+        "include/seastar/util/later.hh",
+        "include/seastar/util/lazy.hh",
+        "include/seastar/util/log.hh",
+        "include/seastar/util/log-cli.hh",
+        "include/seastar/util/log-impl.hh",
+        "include/seastar/util/memory_diagnostics.hh",
+        "include/seastar/util/modules.hh",
+        "include/seastar/util/noncopyable_function.hh",
+        "include/seastar/util/optimized_optional.hh",
+        "include/seastar/util/print_safe.hh",
+        "include/seastar/util/process.hh",
+        "include/seastar/util/program-options.hh",
+        "include/seastar/util/read_first_line.hh",
+        "include/seastar/util/reference_wrapper.hh",
+        "include/seastar/util/sampler.hh",
+        "include/seastar/util/shared_token_bucket.hh",
+        "include/seastar/util/short_streams.hh",
+        "include/seastar/util/source_location-compat.hh",
+        "include/seastar/util/spinlock.hh",
+        "include/seastar/util/std-compat.hh",
+        "include/seastar/util/string_utils.hh",
+        "include/seastar/util/tmp_file.hh",
+        "include/seastar/util/transform_iterator.hh",
+        "include/seastar/util/tuple_utils.hh",
+        "include/seastar/util/used_size.hh",
+        "include/seastar/util/variant_utils.hh",
+        "include/seastar/websocket/common.hh",
+        "include/seastar/websocket/parser.hh",
+        "include/seastar/websocket/server.hh",
+    ],
+    copts = [
+        "-Wno-unused-variable",
+        "-Wno-unused-result",
+        "-Wno-unused-but-set-variable",
+    ] + select({
+        ":use_stack_guards": ["-fstack-clash-protection"],
+        "//conditions:default": [],
+    }),
+    defines = [
+        "BOOST_TEST_DYN_LINK",
+        "BOOST_TEST_NO_LIB",
+        "SEASTAR_API_LEVEL=$(API_LEVEL)",
+        "SEASTAR_HAS_MEMBARRIER",
+        "SEASTAR_SCHEDULING_GROUPS_COUNT=$(SCHEDULING_GROUPS)",
+        "SEASTAR_DEPRECATED_OSTREAM_FORMATTERS",
+    ] + select({
+        ":use_task_backtrace": ["SEASTAR_TASK_BACKTRACE"],
+        "//conditions:default": [],
+    }) + select({
+        ":use_sstring": ["SEASTAR_SSTRING"],
+        "//conditions:default": [],
+    }) + select({
+        ":use_logger_compile_time_fmt": ["SEASTAR_LOGGER_COMPILE_TIME_FMT"],
+        "//conditions:default": [],
+    }) + select({
+        ":use_system_allocator": ["SEASTAR_DEFAULT_ALLOCATOR"],
+        "//conditions:default": [],
+    }) + select({
+        ":with_debug": [
+            "SEASTAR_DEBUG",
+            "SEASTAR_DEBUG_PROMISE",
+            "SEASTAR_DEBUG_SHARED_PTR",
+            "SEASTAR_TYPE_ERASE_MORE",
+        ],
+        "//conditions:default": [],
+    }),
+    includes = [
+        "include",
+        "src",
+    ],
+    linkopts = [
+        "-lhwloc",
+        "-lgnutls",
+    ],
+    local_defines = [
+        "SEASTAR_HAVE_HWLOC",
+        "SEASTAR_DEFERRED_ACTION_REQUIRE_NOEXCEPT",
+        "SEASTAR_HAVE_ASAN_FIBER_SUPPORT",
+    ] + select({
+        ":use_debug_allocations": ["SEASTAR_DEBUG_ALLOCATIONS"],
+        "//conditions:default": [],
+    }) + select({
+        ":use_io_uring": ["SEASTAR_HAVE_URING"],
+        "//conditions:default": [],
+    }) + select({
+        ":use_heap_profiling": ["SEASTAR_HEAPPROF"],
+        "//conditions:default": [],
+    }) + select({
+        ":with_shuffle_task_queue": ["SEASTAR_SHUFFLE_TASK_QUEUE"],
+        "//conditions:default": [],
+    }) + select({
+        ":use_stack_guards": ["SEASTAR_THREAD_STACK_GUARDS"],
+        "//conditions:default": [],
+    }),
+    toolchains = [
+        ":api_level",
+        ":scheduling_groups",
+    ],
+    visibility = [
+        "//visibility:public",
+    ],
+    deps = [
+        ":metrics_cc_proto",
+        "@boost.algorithm",
+        "@boost.asio",
+        "@boost.endian",
+        "@boost.intrusive",
+        "@boost.lockfree",
+        "@boost.program_options",
+        "@boost.thread",
+        "@c-ares//:ares",
+        "@fmt",
+        "@lz4",
+        "@protobuf",
+        "@yaml-cpp",
+    ] + select({
+        ":use_io_uring": ["@liburing"],
+        "//conditions:default": [],
+    }),
+)
diff --git a/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/overlay/MODULE.bazel b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/overlay/MODULE.bazel
new file mode 100644
index 00000000000..97af3748b48
--- /dev/null
+++ b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/overlay/MODULE.bazel
@@ -0,0 +1,24 @@
+module(
+    name = "seastar",
+    version = "25.08.0-20250807194611-1520326e6032.bcr.1",
+    bazel_compatibility = [">=7.2.1"],
+    compatibility_level = 0,
+)
+
+bazel_dep(name = "bazel_skylib", version = "1.8.2")
+bazel_dep(name = "protobuf", version = "31.1")
+bazel_dep(name = "rules_cc", version = "0.2.4")
+bazel_dep(name = "rules_proto", version = "7.1.0")
+bazel_dep(name = "rules_python", version = "1.5.1")
+bazel_dep(name = "boost.algorithm", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.asio", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.endian", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.intrusive", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.lockfree", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.program_options", version = "1.89.0.bcr.1")
+bazel_dep(name = "boost.thread", version = "1.89.0.bcr.1")
+bazel_dep(name = "c-ares", version = "1.34.5")
+bazel_dep(name = "fmt", version = "9.1.0")
+bazel_dep(name = "liburing", version = "2.10")
+bazel_dep(name = "lz4", version = "1.9.4.bcr.1")
+bazel_dep(name = "yaml-cpp", version = "0.8.0")
diff --git a/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/presubmit.yml b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/presubmit.yml
new file mode 100644
index 00000000000..8322cee915c
--- /dev/null
+++ b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/presubmit.yml
@@ -0,0 +1,20 @@
+matrix:
+  platform:
+  - ubuntu2404
+  bazel:
+  - 8.x
+
+tasks:
+  verify_targets:
+    name: Verify targets
+    platform: ${{ platform }}
+    shell_commands:
+    # there are many, but not all, dependencies are in the bcr
+    - sudo apt-get update
+    - sudo apt-get install -y libhwloc-dev ragel make xfslibs-dev valgrind libgnutls28-dev libsctp-dev
+    bazel: ${{ bazel }}
+    build_flags:
+    - '--cxxopt=-std=c++23'
+    - '--host_cxxopt=-std=c++23'
+    build_targets:
+    - '@seastar//...'
diff --git a/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/source.json b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/source.json
new file mode 100644
index 00000000000..40024967ed4
--- /dev/null
+++ b/modules/seastar/25.08.0-20250807194611-1520326e6032.bcr.1/source.json
@@ -0,0 +1,9 @@
+{
+    "url": "https://github.com/scylladb/seastar/archive/1520326e6032b6ba0a479fd0614e1482f3ccc8a3.tar.gz",
+    "integrity": "sha256-/ZPpR5lJs3ink5w/wpLxKP4tekWns7/rz9al7lwiYJs=",
+    "strip_prefix": "seastar-1520326e6032b6ba0a479fd0614e1482f3ccc8a3",
+    "overlay": {
+        "BUILD.bazel": "sha256-Ojm1afENlzEyB2NjP8OsOCT0I8QBEM5xdUxg7s0BslM=",
+        "MODULE.bazel": "sha256-nzmFwthupDY9H9ZA32/Nb3B0FQLjImwPVQYmubn0Fq4="
+    }
+}
diff --git a/modules/seastar/metadata.json b/modules/seastar/metadata.json
index 3dc82c1a86e..7539b626ef3 100644
--- a/modules/seastar/metadata.json
+++ b/modules/seastar/metadata.json
@@ -4,15 +4,16 @@
         {
             "email": "noah@redpanda.com",
             "github": "dotnwat",
-            "name": "Noah Watkins",
-            "github_user_id": 242417
+            "github_user_id": 242417,
+            "name": "Noah Watkins"
         }
     ],
     "repository": [
         "github:scylladb/seastar"
     ],
     "versions": [
-        "25.08.0-20250807194611-1520326e6032"
+        "25.08.0-20250807194611-1520326e6032",
+        "25.08.0-20250807194611-1520326e6032.bcr.1"
     ],
     "yanked_versions": {}
 }