diff --git a/CMakeLists.txt b/CMakeLists.txt
index cd39946..5039cdf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,6 +65,8 @@ if(APPLE)
   target_sources(btop PRIVATE src/osx/btop_collect.cpp src/osx/sensors.cpp src/osx/smc.cpp)
 elseif(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
   target_sources(btop PRIVATE src/freebsd/btop_collect.cpp)
+elseif(CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
+  target_sources(btop PRIVATE src/openbsd/btop_collect.cpp src/openbsd/sysctlbyname.cpp)
 elseif(LINUX)
   target_sources(btop PRIVATE src/linux/btop_collect.cpp)
 else()
@@ -110,6 +112,7 @@ if(HAS_FCF_PROTECTION)
 endif()
 
 target_compile_definitions(btop PRIVATE
+  FMT_HEADER_ONLY
   _FILE_OFFSET_BITS=64
   $<$<CONFIG:Debug>:_GLIBCXX_ASSERTIONS _LIBCPP_ENABLE_ASSERTIONS=1>
   # Only has an effect with optimizations enabled
@@ -185,6 +188,12 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
     find_package(kvm REQUIRED)
     target_link_libraries(btop elf::elf kvm::kvm)
   endif()
+elseif(CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
+  if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+    target_compile_options(btop PRIVATE -static-libstdc++)
+  endif()
+  find_package(kvm REQUIRED)
+  target_link_libraries(btop kvm::kvm)
 endif()
 
 install(TARGETS btop RUNTIME)
diff --git a/Makefile b/Makefile
index ed80899..9af2aa9 100644
--- a/Makefile
+++ b/Makefile
@@ -143,7 +143,7 @@ else ifeq ($(PLATFORM_LC),macos)
 else ifeq ($(PLATFORM_LC),openbsd)
 	PLATFORM_DIR := openbsd
 	THREADS	:= $(shell sysctl -n hw.ncpu || echo 1)
-	override ADDFLAGS += -lkvm
+	override ADDFLAGS += -lkvm -static-libstdc++
 	export MAKE = gmake
 	SU_GROUP := wheel
 else
@@ -179,7 +179,7 @@ override GOODFLAGS := $(foreach flag,$(TESTFLAGS),$(strip $(shell echo "int main
 override REQFLAGS   := -std=c++20
 WARNFLAGS			:= -Wall -Wextra -pedantic
 OPTFLAGS			:= -O2 -ftree-vectorize -flto=$(LTO)
-LDCXXFLAGS			:= -pthread -D_GLIBCXX_ASSERTIONS -D_FILE_OFFSET_BITS=64 $(GOODFLAGS) $(ADDFLAGS)
+LDCXXFLAGS			:= -pthread -DFMT_HEADER_ONLY -D_GLIBCXX_ASSERTIONS -D_FILE_OFFSET_BITS=64 $(GOODFLAGS) $(ADDFLAGS)
 override CXXFLAGS	+= $(REQFLAGS) $(LDCXXFLAGS) $(OPTFLAGS) $(WARNFLAGS)
 override LDFLAGS	+= $(LDCXXFLAGS) $(OPTFLAGS) $(WARNFLAGS)
 INC					:= $(foreach incdir,$(INCDIRS),-isystem $(incdir)) -I$(SRCDIR)
diff --git a/README.md b/README.md
index 13e57ae..042b49b 100644
--- a/README.md
+++ b/README.md
@@ -995,6 +995,74 @@ If you have an AMD GPU `rocm_smi_lib` is required, which may or may not be packa
    gmake help
    ```
 
+</details>
+<details>
+<summary>
+
+### With CMake (Community maintained)
+</summary>
+
+1. **Install build dependencies**
+
+   Requires GCC, CMake, Ninja and Git
+
+   _**Note:** LLVM's libc++ shipped with OpenBSD 7.4 is too old and cannot compile btop._
+
+   ```bash
+   pkg_add cmake g++%11 git ninja
+   ```
+
+2. **Clone the repository**
+
+   ```bash
+   git clone https://github.com/aristocratos/btop.git && cd btop
+   ```
+
+3. **Compile**
+
+   ```bash
+   # Configure
+   CXX=eg++ cmake -B build -G Ninja
+   # Build
+   cmake --build build
+   ```
+
+   This will automatically build a release version of btop.
+
+   Some useful options to pass to the configure step:
+
+   | Configure flag                  | Description                                                             |
+   |---------------------------------|-------------------------------------------------------------------------|
+   | `-DBTOP_LTO=<ON\|OFF>`          | Enables link time optimization (ON by default)                          |
+   | `-DBTOP_USE_MOLD=<ON\|OFF>`     | Use mold to link btop (OFF by default)                                  |
+   | `-DBTOP_PEDANTIC=<ON\|OFF>`     | Compile with additional warnings (OFF by default)                       |
+   | `-DBTOP_WERROR=<ON\|OFF>`       | Compile with warnings as errors (OFF by default)                        |
+   | `-DBTOP_FORTIFY=<ON\|OFF>`      | Detect buffer overflows with `_FORTIFY_SOURCE=3` (ON by default)        |
+   | `-DCMAKE_INSTALL_PREFIX=<path>` | The installation prefix ('/usr/local' by default)                       |
+
+   To force any other compiler, run `CXX=<compiler> cmake -B build -G Ninja`
+
+4. **Install**
+
+   ```bash
+   cmake --install build
+   ```
+
+   May require root privileges
+
+5. **Uninstall**
+
+   CMake doesn't generate an uninstall target by default. To remove installed files, run
+   ```
+   cat build/install_manifest.txt | xargs rm -irv
+   ```
+
+6. **Cleanup build directory**
+
+   ```bash
+   cmake --build build -t clean
+   ```
+
 </details>
 
 ## Installing the snap
diff --git a/cmake/Modules/Findkvm.cmake b/cmake/Modules/Findkvm.cmake
index a0847de..9e4d82b 100644
--- a/cmake/Modules/Findkvm.cmake
+++ b/cmake/Modules/Findkvm.cmake
@@ -3,7 +3,7 @@
 # Find libkvm, the Kernel Data Access Library
 #
 
-if(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+if(BSD)
   find_path(kvm_INCLUDE_DIR NAMES kvm.h)
   find_library(kvm_LIBRARY NAMES kvm)
 
diff --git a/src/btop.cpp b/src/btop.cpp
index 736854f..aac8e9c 100644
--- a/src/btop.cpp
+++ b/src/btop.cpp
@@ -53,6 +53,7 @@ tab-size = 4
 #include "btop_draw.hpp"
 #include "btop_menu.hpp"
 #include "fmt/core.h"
+#include "fmt/ostream.h"
 
 using std::atomic;
 using std::cout;
diff --git a/src/btop_draw.cpp b/src/btop_draw.cpp
index aebf145..bfd12ce 100644
--- a/src/btop_draw.cpp
+++ b/src/btop_draw.cpp
@@ -1364,6 +1364,7 @@ namespace Net {
 	int x = 1, y, width = 20, height;
 	int b_x, b_y, b_width, b_height, d_graph_height, u_graph_height;
 	bool shown = true, redraw = true;
+	const int MAX_IFNAMSIZ = 15;
 	string old_ip;
 	std::unordered_map<string, Draw::Graph> graphs;
 	string box;
@@ -1384,7 +1385,7 @@ namespace Net {
 		out.reserve(width * height);
 		const string title_left = Theme::c("net_box") + Fx::ub + Symbols::title_left;
 		const string title_right = Theme::c("net_box") + Fx::ub + Symbols::title_right;
-		const int i_size = min((int)selected_iface.size(), 10);
+		const int i_size = min((int)selected_iface.size(), MAX_IFNAMSIZ);
 		const long long down_max = (net_auto ? safeVal(graph_max, "download"s) : ((long long)(Config::getI("net_download")) << 20) / 8);
 		const long long up_max = (net_auto ? safeVal(graph_max, "upload"s) : ((long long)(Config::getI("net_upload")) << 20) / 8);
 
@@ -1406,7 +1407,7 @@ namespace Net {
 			//? Interface selector and buttons
 
 			out += Mv::to(y, x+width - i_size - 9) + title_left + Fx::b + Theme::c("hi_fg") + "<b " + Theme::c("title")
-				+ uresize(selected_iface, 10) + Theme::c("hi_fg") + " n>" + title_right
+				+ uresize(selected_iface, MAX_IFNAMSIZ) + Theme::c("hi_fg") + " n>" + title_right
 				+ Mv::to(y, x+width - i_size - 15) + title_left + Theme::c("hi_fg") + (safeVal(net.stat, "download"s).offset + safeVal(net.stat, "upload"s).offset > 0 ? Fx::b : "") + 'z'
 				+ Theme::c("title") + "ero" + title_right;
 			Input::mouse_mappings["b"] = {y, x+width - i_size - 8, 1, 3};
diff --git a/src/btop_tools.hpp b/src/btop_tools.hpp
index 705a5eb..2502786 100644
--- a/src/btop_tools.hpp
+++ b/src/btop_tools.hpp
@@ -18,6 +18,10 @@ tab-size = 4
 
 #pragma once
 
+#if !defined(NDEBUG)
+# define BTOP_DEBUG
+#endif
+
 #include <algorithm>        // for std::ranges::count_if
 #include <array>
 #include <atomic>
@@ -42,11 +46,9 @@ tab-size = 4
 		#define HOST_NAME_MAX 64
 	#endif
 #endif
-#define FMT_HEADER_ONLY
+
 #include "fmt/core.h"
 #include "fmt/format.h"
-#include "fmt/ostream.h"
-#include "fmt/ranges.h"
 
 using std::array;
 using std::atomic;
diff --git a/src/linux/btop_collect.cpp b/src/linux/btop_collect.cpp
index 64f55f7..739d587 100644
--- a/src/linux/btop_collect.cpp
+++ b/src/linux/btop_collect.cpp
@@ -590,7 +590,7 @@ namespace Cpu {
 				cpuhz += " GHz";
 			}
 			else if (hz > 0)
-				cpuhz = to_string((int)round(hz)) + " MHz";
+				cpuhz = to_string((int)hz) + " MHz";
 
 		}
 		catch (const std::exception& e) {