diff --git a/esphome/components/api/__init__.py b/esphome/components/api/__init__.py
index 9cbab8164f..f48a7d93be 100644
--- a/esphome/components/api/__init__.py
+++ b/esphome/components/api/__init__.py
@@ -53,6 +53,7 @@ SERVICE_ARG_NATIVE_TYPES = {
 CONF_ENCRYPTION = "encryption"
 CONF_BATCH_DELAY = "batch_delay"
 CONF_CUSTOM_SERVICES = "custom_services"
+CONF_HOMEASSISTANT_STATES = "homeassistant_states"
 
 
 def validate_encryption_key(value):
@@ -118,6 +119,7 @@ CONFIG_SCHEMA = cv.All(
                 cv.Range(max=cv.TimePeriod(milliseconds=65535)),
             ),
             cv.Optional(CONF_CUSTOM_SERVICES, default=False): cv.boolean,
+            cv.Optional(CONF_HOMEASSISTANT_STATES, default=False): cv.boolean,
             cv.Optional(CONF_ON_CLIENT_CONNECTED): automation.validate_automation(
                 single=True
             ),
@@ -146,6 +148,9 @@ async def to_code(config):
     if config.get(CONF_ACTIONS) or config[CONF_CUSTOM_SERVICES]:
         cg.add_define("USE_API_SERVICES")
 
+    if config[CONF_HOMEASSISTANT_STATES]:
+        cg.add_define("USE_API_HOMEASSISTANT_STATES")
+
     if actions := config.get(CONF_ACTIONS, []):
         for conf in actions:
             template_args = []
diff --git a/esphome/components/api/api.proto b/esphome/components/api/api.proto
index 93e84702e2..5956c8b0b9 100644
--- a/esphome/components/api/api.proto
+++ b/esphome/components/api/api.proto
@@ -781,11 +781,13 @@ message HomeassistantServiceResponse {
 message SubscribeHomeAssistantStatesRequest {
   option (id) = 38;
   option (source) = SOURCE_CLIENT;
+  option (ifdef) = "USE_API_HOMEASSISTANT_STATES";
 }
 
 message SubscribeHomeAssistantStateResponse {
   option (id) = 39;
   option (source) = SOURCE_SERVER;
+  option (ifdef) = "USE_API_HOMEASSISTANT_STATES";
   string entity_id = 1;
   string attribute = 2;
   bool once = 3;
@@ -795,6 +797,7 @@ message HomeAssistantStateResponse {
   option (id) = 40;
   option (source) = SOURCE_CLIENT;
   option (no_delay) = true;
+  option (ifdef) = "USE_API_HOMEASSISTANT_STATES";
 
   string entity_id = 1;
   string state = 2;
diff --git a/esphome/components/api/api_connection.cpp b/esphome/components/api/api_connection.cpp
index 76713c54c8..0d3b99cd41 100644
--- a/esphome/components/api/api_connection.cpp
+++ b/esphome/components/api/api_connection.cpp
@@ -242,6 +242,7 @@ void APIConnection::loop() {
   }
 #endif
 
+#ifdef USE_API_HOMEASSISTANT_STATES
   if (state_subs_at_ >= 0) {
     const auto &subs = this->parent_->get_state_subs();
     if (state_subs_at_ < static_cast<int>(subs.size())) {
@@ -259,6 +260,7 @@ void APIConnection::loop() {
       state_subs_at_ = -1;
     }
   }
+#endif
 }
 
 bool APIConnection::send_disconnect_response(const DisconnectRequest &msg) {
@@ -1512,6 +1514,7 @@ bool APIConnection::send_device_info_response(const DeviceInfoRequest &msg) {
   return this->send_message(resp, DeviceInfoResponse::MESSAGE_TYPE);
 }
 
+#ifdef USE_API_HOMEASSISTANT_STATES
 void APIConnection::on_home_assistant_state_response(const HomeAssistantStateResponse &msg) {
   for (auto &it : this->parent_->get_state_subs()) {
     if (it.entity_id == msg.entity_id && it.attribute.value() == msg.attribute) {
@@ -1519,6 +1522,7 @@ void APIConnection::on_home_assistant_state_response(const HomeAssistantStateRes
     }
   }
 }
+#endif
 #ifdef USE_API_SERVICES
 void APIConnection::execute_service(const ExecuteServiceRequest &msg) {
   bool found = false;
@@ -1550,9 +1554,11 @@ bool APIConnection::send_noise_encryption_set_key_response(const NoiseEncryption
   return this->send_message(resp, NoiseEncryptionSetKeyResponse::MESSAGE_TYPE);
 }
 #endif
+#ifdef USE_API_HOMEASSISTANT_STATES
 void APIConnection::subscribe_home_assistant_states(const SubscribeHomeAssistantStatesRequest &msg) {
   state_subs_at_ = 0;
 }
+#endif
 bool APIConnection::try_to_clear_buffer(bool log_out_of_space) {
   if (this->flags_.remove)
     return false;
@@ -1590,10 +1596,12 @@ bool APIConnection::send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) {
   // Do not set last_traffic_ on send
   return true;
 }
+#ifdef USE_API_PASSWORD
 void APIConnection::on_unauthenticated_access() {
   this->on_fatal_error();
   ESP_LOGD(TAG, "%s access without authentication", this->get_client_combined_info().c_str());
 }
+#endif
 void APIConnection::on_no_setup_connection() {
   this->on_fatal_error();
   ESP_LOGD(TAG, "%s access without full connection", this->get_client_combined_info().c_str());
diff --git a/esphome/components/api/api_connection.h b/esphome/components/api/api_connection.h
index 6214d5ba82..4f4b44b0ad 100644
--- a/esphome/components/api/api_connection.h
+++ b/esphome/components/api/api_connection.h
@@ -188,7 +188,9 @@ class APIConnection : public APIServerConnection {
     // we initiated ping
     this->flags_.sent_ping = false;
   }
+#ifdef USE_API_HOMEASSISTANT_STATES
   void on_home_assistant_state_response(const HomeAssistantStateResponse &msg) override;
+#endif
 #ifdef USE_HOMEASSISTANT_TIME
   void on_get_time_response(const GetTimeResponse &value) override;
 #endif
@@ -210,7 +212,9 @@ class APIConnection : public APIServerConnection {
   void subscribe_homeassistant_services(const SubscribeHomeassistantServicesRequest &msg) override {
     this->flags_.service_call_subscription = true;
   }
+#ifdef USE_API_HOMEASSISTANT_STATES
   void subscribe_home_assistant_states(const SubscribeHomeAssistantStatesRequest &msg) override;
+#endif
   bool send_get_time_response(const GetTimeRequest &msg) override;
 #ifdef USE_API_SERVICES
   void execute_service(const ExecuteServiceRequest &msg) override;
@@ -228,7 +232,9 @@ class APIConnection : public APIServerConnection {
   }
   uint8_t get_log_subscription_level() const { return this->flags_.log_subscription; }
   void on_fatal_error() override;
+#ifdef USE_API_PASSWORD
   void on_unauthenticated_access() override;
+#endif
   void on_no_setup_connection() override;
   ProtoWriteBuffer create_buffer(uint32_t reserve_size) override {
     // FIXME: ensure no recursive writes can happen
@@ -492,7 +498,9 @@ class APIConnection : public APIServerConnection {
 
   // Group 4: 4-byte types
   uint32_t last_traffic_;
+#ifdef USE_API_HOMEASSISTANT_STATES
   int state_subs_at_ = -1;
+#endif
 
   // Function pointer type for message encoding
   using MessageCreatorPtr = uint16_t (*)(EntityBase *, APIConnection *, uint32_t remaining_size, bool is_single);
diff --git a/esphome/components/api/api_pb2.cpp b/esphome/components/api/api_pb2.cpp
index 6d2e17dc27..e2d1cfebd4 100644
--- a/esphome/components/api/api_pb2.cpp
+++ b/esphome/components/api/api_pb2.cpp
@@ -871,6 +871,7 @@ void HomeassistantServiceResponse::calculate_size(uint32_t &total_size) const {
   ProtoSize::add_repeated_message(total_size, 1, this->variables);
   ProtoSize::add_bool_field(total_size, 1, this->is_event);
 }
+#ifdef USE_API_HOMEASSISTANT_STATES
 void SubscribeHomeAssistantStateResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(1, this->entity_id_ref_);
   buffer.encode_string(2, this->attribute_ref_);
@@ -897,6 +898,7 @@ bool HomeAssistantStateResponse::decode_length(uint32_t field_id, ProtoLengthDel
   }
   return true;
 }
+#endif
 bool GetTimeResponse::decode_32bit(uint32_t field_id, Proto32Bit value) {
   switch (field_id) {
     case 1:
diff --git a/esphome/components/api/api_pb2.h b/esphome/components/api/api_pb2.h
index 756c320ff4..e7f8237808 100644
--- a/esphome/components/api/api_pb2.h
+++ b/esphome/components/api/api_pb2.h
@@ -1092,6 +1092,7 @@ class HomeassistantServiceResponse : public ProtoMessage {
 
  protected:
 };
+#ifdef USE_API_HOMEASSISTANT_STATES
 class SubscribeHomeAssistantStatesRequest : public ProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 38;
@@ -1142,6 +1143,7 @@ class HomeAssistantStateResponse : public ProtoDecodableMessage {
  protected:
   bool decode_length(uint32_t field_id, ProtoLengthDelimited value) override;
 };
+#endif
 class GetTimeRequest : public ProtoMessage {
  public:
   static constexpr uint8_t MESSAGE_TYPE = 36;
diff --git a/esphome/components/api/api_pb2_dump.cpp b/esphome/components/api/api_pb2_dump.cpp
index 5db9b79cfa..d7f9f63f5f 100644
--- a/esphome/components/api/api_pb2_dump.cpp
+++ b/esphome/components/api/api_pb2_dump.cpp
@@ -1066,6 +1066,7 @@ void HomeassistantServiceResponse::dump_to(std::string &out) const {
   }
   dump_field(out, "is_event", this->is_event);
 }
+#ifdef USE_API_HOMEASSISTANT_STATES
 void SubscribeHomeAssistantStatesRequest::dump_to(std::string &out) const {
   out.append("SubscribeHomeAssistantStatesRequest {}");
 }
@@ -1081,6 +1082,7 @@ void HomeAssistantStateResponse::dump_to(std::string &out) const {
   dump_field(out, "state", this->state);
   dump_field(out, "attribute", this->attribute);
 }
+#endif
 void GetTimeRequest::dump_to(std::string &out) const { out.append("GetTimeRequest {}"); }
 void GetTimeResponse::dump_to(std::string &out) const { dump_field(out, "epoch_seconds", this->epoch_seconds); }
 #ifdef USE_API_SERVICES
diff --git a/esphome/components/api/api_pb2_service.cpp b/esphome/components/api/api_pb2_service.cpp
index 3d75cfe162..415e4ff91c 100644
--- a/esphome/components/api/api_pb2_service.cpp
+++ b/esphome/components/api/api_pb2_service.cpp
@@ -176,6 +176,7 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
       this->on_get_time_response(msg);
       break;
     }
+#ifdef USE_API_HOMEASSISTANT_STATES
     case SubscribeHomeAssistantStatesRequest::MESSAGE_TYPE: {
       SubscribeHomeAssistantStatesRequest msg;
       // Empty message: no decode needed
@@ -185,6 +186,8 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
       this->on_subscribe_home_assistant_states_request(msg);
       break;
     }
+#endif
+#ifdef USE_API_HOMEASSISTANT_STATES
     case HomeAssistantStateResponse::MESSAGE_TYPE: {
       HomeAssistantStateResponse msg;
       msg.decode(msg_data, msg_size);
@@ -194,6 +197,7 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
       this->on_home_assistant_state_response(msg);
       break;
     }
+#endif
 #ifdef USE_API_SERVICES
     case ExecuteServiceRequest::MESSAGE_TYPE: {
       ExecuteServiceRequest msg;
@@ -641,11 +645,13 @@ void APIServerConnection::on_subscribe_homeassistant_services_request(
     this->subscribe_homeassistant_services(msg);
   }
 }
+#ifdef USE_API_HOMEASSISTANT_STATES
 void APIServerConnection::on_subscribe_home_assistant_states_request(const SubscribeHomeAssistantStatesRequest &msg) {
   if (this->check_authenticated_()) {
     this->subscribe_home_assistant_states(msg);
   }
 }
+#endif
 void APIServerConnection::on_get_time_request(const GetTimeRequest &msg) {
   if (this->check_connection_setup_() && !this->send_get_time_response(msg)) {
     this->on_fatal_error();
diff --git a/esphome/components/api/api_pb2_service.h b/esphome/components/api/api_pb2_service.h
index 38008197fa..19ed85aa0b 100644
--- a/esphome/components/api/api_pb2_service.h
+++ b/esphome/components/api/api_pb2_service.h
@@ -62,9 +62,13 @@ class APIServerConnectionBase : public ProtoService {
 
   virtual void on_subscribe_homeassistant_services_request(const SubscribeHomeassistantServicesRequest &value){};
 
+#ifdef USE_API_HOMEASSISTANT_STATES
   virtual void on_subscribe_home_assistant_states_request(const SubscribeHomeAssistantStatesRequest &value){};
+#endif
 
+#ifdef USE_API_HOMEASSISTANT_STATES
   virtual void on_home_assistant_state_response(const HomeAssistantStateResponse &value){};
+#endif
   virtual void on_get_time_request(const GetTimeRequest &value){};
   virtual void on_get_time_response(const GetTimeResponse &value){};
 
@@ -215,7 +219,9 @@ class APIServerConnection : public APIServerConnectionBase {
   virtual void subscribe_states(const SubscribeStatesRequest &msg) = 0;
   virtual void subscribe_logs(const SubscribeLogsRequest &msg) = 0;
   virtual void subscribe_homeassistant_services(const SubscribeHomeassistantServicesRequest &msg) = 0;
+#ifdef USE_API_HOMEASSISTANT_STATES
   virtual void subscribe_home_assistant_states(const SubscribeHomeAssistantStatesRequest &msg) = 0;
+#endif
   virtual bool send_get_time_response(const GetTimeRequest &msg) = 0;
 #ifdef USE_API_SERVICES
   virtual void execute_service(const ExecuteServiceRequest &msg) = 0;
@@ -333,7 +339,9 @@ class APIServerConnection : public APIServerConnectionBase {
   void on_subscribe_states_request(const SubscribeStatesRequest &msg) override;
   void on_subscribe_logs_request(const SubscribeLogsRequest &msg) override;
   void on_subscribe_homeassistant_services_request(const SubscribeHomeassistantServicesRequest &msg) override;
+#ifdef USE_API_HOMEASSISTANT_STATES
   void on_subscribe_home_assistant_states_request(const SubscribeHomeAssistantStatesRequest &msg) override;
+#endif
   void on_get_time_request(const GetTimeRequest &msg) override;
 #ifdef USE_API_SERVICES
   void on_execute_service_request(const ExecuteServiceRequest &msg) override;
diff --git a/esphome/components/api/api_server.cpp b/esphome/components/api/api_server.cpp
index 6d1729e611..0454315760 100644
--- a/esphome/components/api/api_server.cpp
+++ b/esphome/components/api/api_server.cpp
@@ -375,6 +375,7 @@ void APIServer::send_homeassistant_service_call(const HomeassistantServiceRespon
   }
 }
 
+#ifdef USE_API_HOMEASSISTANT_STATES
 void APIServer::subscribe_home_assistant_state(std::string entity_id, optional<std::string> attribute,
                                                std::function<void(std::string)> f) {
   this->state_subs_.push_back(HomeAssistantStateSubscription{
@@ -398,6 +399,7 @@ void APIServer::get_home_assistant_state(std::string entity_id, optional<std::st
 const std::vector<APIServer::HomeAssistantStateSubscription> &APIServer::get_state_subs() const {
   return this->state_subs_;
 }
+#endif
 
 uint16_t APIServer::get_port() const { return this->port_; }
 
diff --git a/esphome/components/api/api_server.h b/esphome/components/api/api_server.h
index 54663a013f..22e9573d7e 100644
--- a/esphome/components/api/api_server.h
+++ b/esphome/components/api/api_server.h
@@ -126,6 +126,7 @@ class APIServer : public Component, public Controller {
 
   bool is_connected() const;
 
+#ifdef USE_API_HOMEASSISTANT_STATES
   struct HomeAssistantStateSubscription {
     std::string entity_id;
     optional<std::string> attribute;
@@ -138,6 +139,7 @@ class APIServer : public Component, public Controller {
   void get_home_assistant_state(std::string entity_id, optional<std::string> attribute,
                                 std::function<void(std::string)> f);
   const std::vector<HomeAssistantStateSubscription> &get_state_subs() const;
+#endif
 #ifdef USE_API_SERVICES
   const std::vector<UserServiceDescriptor *> &get_user_services() const { return this->user_services_; }
 #endif
@@ -171,7 +173,9 @@ class APIServer : public Component, public Controller {
   std::string password_;
 #endif
   std::vector<uint8_t> shared_write_buffer_;  // Shared proto write buffer for all connections
+#ifdef USE_API_HOMEASSISTANT_STATES
   std::vector<HomeAssistantStateSubscription> state_subs_;
+#endif
 #ifdef USE_API_SERVICES
   std::vector<UserServiceDescriptor *> user_services_;
 #endif
diff --git a/esphome/components/api/custom_api_device.h b/esphome/components/api/custom_api_device.h
index 73c7804ff3..e9e39a0772 100644
--- a/esphome/components/api/custom_api_device.h
+++ b/esphome/components/api/custom_api_device.h
@@ -83,6 +83,7 @@ class CustomAPIDevice {
   }
 #endif
 
+#ifdef USE_API_HOMEASSISTANT_STATES
   /** Subscribe to the state (or attribute state) of an entity from Home Assistant.
    *
    * Usage:
@@ -134,6 +135,7 @@ class CustomAPIDevice {
     auto f = std::bind(callback, (T *) this, entity_id, std::placeholders::_1);
     global_api_server->subscribe_home_assistant_state(entity_id, optional<std::string>(attribute), f);
   }
+#endif
 
   /** Call a Home Assistant service from ESPHome.
    *
diff --git a/esphome/components/api/proto.h b/esphome/components/api/proto.h
index 44f9716516..771eaa98d1 100644
--- a/esphome/components/api/proto.h
+++ b/esphome/components/api/proto.h
@@ -860,7 +860,9 @@ class ProtoService {
   virtual bool is_authenticated() = 0;
   virtual bool is_connection_setup() = 0;
   virtual void on_fatal_error() = 0;
+#ifdef USE_API_PASSWORD
   virtual void on_unauthenticated_access() = 0;
+#endif
   virtual void on_no_setup_connection() = 0;
   /**
    * Create a buffer with a reserved size.
@@ -898,6 +900,7 @@ class ProtoService {
   }
 
   bool check_authenticated_() {
+#ifdef USE_API_PASSWORD
     if (!this->check_connection_setup_()) {
       return false;
     }
@@ -906,6 +909,9 @@ class ProtoService {
       return false;
     }
     return true;
+#else
+    return this->check_connection_setup_();
+#endif
   }
 };
 
diff --git a/esphome/components/display/__init__.py b/esphome/components/display/__init__.py
index 12c63231e7..81f2536e96 100644
--- a/esphome/components/display/__init__.py
+++ b/esphome/components/display/__init__.py
@@ -51,8 +51,7 @@ DISPLAY_ROTATIONS = {
 
 def validate_rotation(value):
     value = cv.string(value)
-    if value.endswith("°"):
-        value = value[:-1]
+    value = value.removesuffix("°")
     return cv.enum(DISPLAY_ROTATIONS, int=True)(value)
 
 
diff --git a/esphome/components/homeassistant/__init__.py b/esphome/components/homeassistant/__init__.py
index 223d6c18c3..7b23775b47 100644
--- a/esphome/components/homeassistant/__init__.py
+++ b/esphome/components/homeassistant/__init__.py
@@ -38,3 +38,4 @@ def setup_home_assistant_entity(var, config):
     cg.add(var.set_entity_id(config[CONF_ENTITY_ID]))
     if CONF_ATTRIBUTE in config:
         cg.add(var.set_attribute(config[CONF_ATTRIBUTE]))
+    cg.add_define("USE_API_HOMEASSISTANT_STATES")
diff --git a/esphome/components/i2c/i2c_bus_esp_idf.cpp b/esphome/components/i2c/i2c_bus_esp_idf.cpp
index c473a58b5e..cf31ba1c0d 100644
--- a/esphome/components/i2c/i2c_bus_esp_idf.cpp
+++ b/esphome/components/i2c/i2c_bus_esp_idf.cpp
@@ -151,13 +151,13 @@ void IDFI2CBus::dump_config() {
       break;
   }
   if (this->scan_) {
-    ESP_LOGI(TAG, "Results from bus scan:");
+    ESP_LOGCONFIG(TAG, "Results from bus scan:");
     if (scan_results_.empty()) {
-      ESP_LOGI(TAG, "Found no devices");
+      ESP_LOGCONFIG(TAG, "Found no devices");
     } else {
       for (const auto &s : scan_results_) {
         if (s.second) {
-          ESP_LOGI(TAG, "Found device at address 0x%02X", s.first);
+          ESP_LOGCONFIG(TAG, "Found device at address 0x%02X", s.first);
         } else {
           ESP_LOGE(TAG, "Unknown error at address 0x%02X", s.first);
         }
diff --git a/esphome/components/logger/__init__.py b/esphome/components/logger/__init__.py
index d718a7a612..d8c95d75f2 100644
--- a/esphome/components/logger/__init__.py
+++ b/esphome/components/logger/__init__.py
@@ -409,7 +409,7 @@ def validate_printf(value):
     [cCdiouxXeEfgGaAnpsSZ]             # type
     )
     """  # noqa
-    matches = re.findall(cfmt, value[CONF_FORMAT], flags=re.X)
+    matches = re.findall(cfmt, value[CONF_FORMAT], flags=re.VERBOSE)
     if len(matches) != len(value[CONF_ARGS]):
         raise cv.Invalid(
             f"Found {len(matches)} printf-patterns ({', '.join(matches)}), but {len(value[CONF_ARGS])} args were given!"
diff --git a/esphome/components/lvgl/helpers.py b/esphome/components/lvgl/helpers.py
index e04a0105d5..8d5b6354bb 100644
--- a/esphome/components/lvgl/helpers.py
+++ b/esphome/components/lvgl/helpers.py
@@ -33,7 +33,7 @@ def validate_printf(value):
     [cCdiouxXeEfgGaAnpsSZ]             # type
     )
     """  # noqa
-    matches = re.findall(cfmt, value[CONF_FORMAT], flags=re.X)
+    matches = re.findall(cfmt, value[CONF_FORMAT], flags=re.VERBOSE)
     if len(matches) != len(value[CONF_ARGS]):
         raise cv.Invalid(
             f"Found {len(matches)} printf-patterns ({', '.join(matches)}), but {len(value[CONF_ARGS])} args were given!"
diff --git a/esphome/components/speaker/media_player/__init__.py b/esphome/components/speaker/media_player/__init__.py
index 16dcc855c3..1c2e7dc0e1 100644
--- a/esphome/components/speaker/media_player/__init__.py
+++ b/esphome/components/speaker/media_player/__init__.py
@@ -155,8 +155,7 @@ def _read_audio_file_and_type(file_config):
     import puremagic
 
     file_type: str = puremagic.from_string(data)
-    if file_type.startswith("."):
-        file_type = file_type[1:]
+    file_type = file_type.removeprefix(".")
 
     media_file_type = audio.AUDIO_FILE_TYPE_ENUM["NONE"]
     if file_type in ("wav"):
diff --git a/esphome/components/stepper/__init__.py b/esphome/components/stepper/__init__.py
index 66fe88c6c4..c234388e7e 100644
--- a/esphome/components/stepper/__init__.py
+++ b/esphome/components/stepper/__init__.py
@@ -27,8 +27,7 @@ SetDecelerationAction = stepper_ns.class_("SetDecelerationAction", automation.Ac
 def validate_acceleration(value):
     value = cv.string(value)
     for suffix in ("steps/s^2", "steps/s*s", "steps/s/s", "steps/ss", "steps/(s*s)"):
-        if value.endswith(suffix):
-            value = value[: -len(suffix)]
+        value = value.removesuffix(suffix)
 
     if value == "inf":
         return 1e6
@@ -48,8 +47,7 @@ def validate_acceleration(value):
 def validate_speed(value):
     value = cv.string(value)
     for suffix in ("steps/s", "steps/s"):
-        if value.endswith(suffix):
-            value = value[: -len(suffix)]
+        value = value.removesuffix(suffix)
 
     if value == "inf":
         return 1e6
diff --git a/esphome/core/defines.h b/esphome/core/defines.h
index 348f288863..611e283e6d 100644
--- a/esphome/core/defines.h
+++ b/esphome/core/defines.h
@@ -109,6 +109,7 @@
 #define USE_API
 #define USE_API_CLIENT_CONNECTED_TRIGGER
 #define USE_API_CLIENT_DISCONNECTED_TRIGGER
+#define USE_API_HOMEASSISTANT_STATES
 #define USE_API_NOISE
 #define USE_API_PLAINTEXT
 #define USE_API_SERVICES
diff --git a/esphome/cpp_generator.py b/esphome/cpp_generator.py
index 72aadcb139..34e4eec1ee 100644
--- a/esphome/cpp_generator.py
+++ b/esphome/cpp_generator.py
@@ -771,8 +771,7 @@ class MockObj(Expression):
         if attr.startswith("P") and self.op not in ["::", ""]:
             attr = attr[1:]
             next_op = "->"
-        if attr.startswith("_"):
-            attr = attr[1:]
+        attr = attr.removeprefix("_")
         return MockObj(f"{self.base}{self.op}{attr}", next_op)
 
     def __call__(self, *args: SafeExpType) -> "MockObj":
diff --git a/esphome/writer.py b/esphome/writer.py
index 2c2e00b513..b5c834722a 100644
--- a/esphome/writer.py
+++ b/esphome/writer.py
@@ -76,7 +76,7 @@ def get_include_text():
 
 
 def replace_file_content(text, pattern, repl):
-    content_new, count = re.subn(pattern, repl, text, flags=re.M)
+    content_new, count = re.subn(pattern, repl, text, flags=re.MULTILINE)
     return content_new, count
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 742cd6e83d..200f51a873 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -113,6 +113,7 @@ exclude = ['generated']
 select = [
   "E",    # pycodestyle
   "F",    # pyflakes/autoflake
+  "FURB", # refurb
   "I",    # isort
   "PERF", # performance
   "PL",   # pylint
diff --git a/script/generate-esp32-boards.py b/script/generate-esp32-boards.py
index 83d0f0c3e0..3f444ed455 100755
--- a/script/generate-esp32-boards.py
+++ b/script/generate-esp32-boards.py
@@ -64,8 +64,10 @@ def main():
         for line in lines:
             if line.startswith("BOARDS = {"):
                 f.write("BOARDS = {\n")
-                for board, info in sorted(boards.items()):
-                    f.write(TEMPLATE % (board, info["name"], info["variant"]))
+                f.writelines(
+                    TEMPLATE % (board, info["name"], info["variant"])
+                    for board, info in sorted(boards.items())
+                )
                 f.write("}\n")
                 break