diff --git a/config.h.meson b/config.h.meson
index 0e71553..8618a4b 100644
--- a/config.h.meson
+++ b/config.h.meson
@@ -1,11 +1,32 @@
 #pragma once
+#include <cstddef>
+
+#define PROCESS_META 1
 
 // @TODO(stwcx): These values are currently configured in autoconf but never
 //               modified by anyone, nor could I see why they ever would be.
 //               Once autoconf is removed, they should be switched over to
 //               a constant in a header file.
 
+#define BMC_VERSION_FILE "/etc/os-release"
 #define BUSNAME_LOGGING "xyz.openbmc_project.Logging"
+#define CALLOUT_FWD_ASSOCIATION "callout"
+#define CALLOUT_REV_ASSOCIATION "fault"
+#define INVENTORY_ROOT "/xyz/openbmc_project/inventory"
+#define OBJ_ENTRY "/xyz/openbmc_project/logging/entry"
 #define OBJ_INTERNAL "/xyz/openbmc_project/logging/internal/manager"
+#define OBJ_LOGGING "/xyz/openbmc_project/logging"
+#define SYSTEMD_BUSNAME "org.freedesktop.systemd1"
+#define SYSTEMD_INTERFACE "org.freedesktop.systemd1.Manager"
+#define SYSTEMD_PATH "/org/freedesktop/systemd1"
+
+#define ERRLOG_PERSIST_PATH "/var/lib/phosphor-logging/errors" // TODO: need /tmp/errors in some cases?
+
+static constexpr size_t ERROR_CAP = @error_cap@;
+static constexpr size_t ERROR_INFO_CAP = @error_info_cap@;
+
+static constexpr auto FIRST_CEREAL_CLASS_VERSION_WITH_FWLEVEL = "2";
+static constexpr auto FIRST_CEREAL_CLASS_VERSION_WITH_UPDATE_TS = "3";
+static constexpr size_t CLASS_VERSION = 3;
 
 // vim: ft=cpp
diff --git a/elog_meta.hpp b/elog_meta.hpp
index 81d8e58..a4ace76 100644
--- a/elog_meta.hpp
+++ b/elog_meta.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "config.h"
+
 #include "callouts-gen.hpp"
 #include "elog_entry.hpp"
 
diff --git a/gen/README b/gen/README
new file mode 100644
index 0000000..71182b5
--- /dev/null
+++ b/gen/README
@@ -0,0 +1,2 @@
+This directory contains generated meson.build files from sdbus++-gen-meson.
+Do not edit them by hand.
diff --git a/gen/meson.build b/gen/meson.build
new file mode 100644
index 0000000..af850f2
--- /dev/null
+++ b/gen/meson.build
@@ -0,0 +1,14 @@
+# Generated file; do not modify.
+sdbuspp_gen_meson_ver = run_command(
+    sdbuspp_gen_meson_prog,
+    '--version',
+).stdout().strip().split('\n')[0]
+
+if sdbuspp_gen_meson_ver != 'sdbus++-gen-meson version 2'
+    warning('Generated meson files from wrong version of sdbus++-gen-meson.')
+    warning(
+        'Expected "sdbus++-gen-meson version 2", got:',
+        sdbuspp_gen_meson_ver
+    )
+endif
+
diff --git a/gen/regenerate-meson b/gen/regenerate-meson
new file mode 100755
index 0000000..56bc2c6
--- /dev/null
+++ b/gen/regenerate-meson
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+REPO_ROOT=$(git rev-parse --show-toplevel)
+
+# Find sdbus++-gen-meson
+#   1. Check $SDBUSPP_GEN_MESON
+#   2. Check in $PATH
+#   3. Check in subprojects/sdbusplus
+if [ ! -x "$SDBUSPP_GEN_MESON" ]; then
+    SDBUSPP_GEN_MESON="$(which sdbus++-gen-meson 2> /dev/null)"
+fi
+if [ ! -x "$SDBUSPP_GEN_MESON" ]; then
+    SDBUSPP_GEN_MESON="$REPO_ROOT/subprojects/sdbusplus/tools/sdbus++-gen-meson"
+fi
+if [ ! -x "$SDBUSPP_GEN_MESON" ]; then
+    echo "Cannot find sdbus++-gen-meson ($SDBUSPP_GEN_MESON)."
+    exit 1
+fi
+
+$SDBUSPP_GEN_MESON \
+    --command meson \
+    --directory "$REPO_ROOT" \
+    --output "$REPO_ROOT/gen"
diff --git a/gen/xyz/meson.build b/gen/xyz/meson.build
new file mode 100644
index 0000000..e4991ad
--- /dev/null
+++ b/gen/xyz/meson.build
@@ -0,0 +1,2 @@
+# Generated file; do not modify.
+subdir('openbmc_project')
diff --git a/gen/xyz/openbmc_project/Logging/Internal/Manager/meson.build b/gen/xyz/openbmc_project/Logging/Internal/Manager/meson.build
new file mode 100644
index 0000000..230448b
--- /dev/null
+++ b/gen/xyz/openbmc_project/Logging/Internal/Manager/meson.build
@@ -0,0 +1,14 @@
+# Generated file; do not modify.
+generated_sources += custom_target(
+    'xyz/openbmc_project/Logging/Internal/Manager__cpp'.underscorify(),
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Internal/Manager.interface.yaml',  ],
+    output: [ 'server.cpp', 'server.hpp', 'client.hpp',  ],
+    command: [
+        sdbuspp_gen_meson_prog, '--command', 'cpp',
+        '--output', meson.current_build_dir(),
+        '--tool', sdbusplusplus_prog,
+        '--directory', meson.project_source_root(),
+        'xyz/openbmc_project/Logging/Internal/Manager',
+    ],
+)
+
diff --git a/gen/xyz/openbmc_project/Logging/Internal/meson.build b/gen/xyz/openbmc_project/Logging/Internal/meson.build
new file mode 100644
index 0000000..aaa5ce8
--- /dev/null
+++ b/gen/xyz/openbmc_project/Logging/Internal/meson.build
@@ -0,0 +1,16 @@
+# Generated file; do not modify.
+subdir('Manager')
+generated_others += custom_target(
+    'xyz/openbmc_project/Logging/Internal/Manager__markdown'.underscorify(),
+    input: [ meson.project_source_root() / 'xyz/openbmc_project/Logging/Internal/Manager.interface.yaml',  ],
+    output: [ 'Manager.md' ],
+    command: [
+        sdbuspp_gen_meson_prog, '--command', 'markdown',
+        '--output', meson.current_build_dir(),
+        '--tool', sdbusplusplus_prog,
+        '--directory', meson.project_source_root(),
+        'xyz/openbmc_project/Logging/Internal/Manager',
+    ],
+    build_by_default: true,
+)
+
diff --git a/gen/xyz/openbmc_project/Logging/meson.build b/gen/xyz/openbmc_project/Logging/meson.build
new file mode 100644
index 0000000..6421d35
--- /dev/null
+++ b/gen/xyz/openbmc_project/Logging/meson.build
@@ -0,0 +1,2 @@
+# Generated file; do not modify.
+subdir('Internal')
diff --git a/gen/xyz/openbmc_project/meson.build b/gen/xyz/openbmc_project/meson.build
new file mode 100644
index 0000000..1b45c9d
--- /dev/null
+++ b/gen/xyz/openbmc_project/meson.build
@@ -0,0 +1,2 @@
+# Generated file; do not modify.
+subdir('Logging')
diff --git a/meson.build b/meson.build
index 64931d9..f448b39 100644
--- a/meson.build
+++ b/meson.build
@@ -35,6 +35,15 @@
     fallback: ['sdeventplus', 'sdeventplus_dep' ],
 )
 
+# Get Cereal dependency.
+cereal_dep = dependency('cereal', required: false)
+if not cereal_dep.found()
+    subproject('cereal', required: false)
+    cereal_dep = declare_dependency(
+        include_directories: [ 'subprojects/cereal/include' ],
+    )
+endif
+
 # Find the installed YAML directory, either from a configure option or
 # by pulling it from the PDI dependency.
 yamldir = get_option('yamldir')
@@ -44,12 +53,20 @@
 
 # Create config.h with constants that use to come from autoconf.
 conf_data = configuration_data()
+conf_data.set('error_cap', get_option('error_cap'))
+conf_data.set('error_info_cap', get_option('error_info_cap'))
 configure_file(
     input: 'config.h.meson',
     output: 'config.h',
     configuration: conf_data,
 )
 
+# Generate sdbus++ files.
+generated_sources = []
+generated_others = []
+subdir('gen')
+subdir('gen/xyz')
+
 # Generate callouts-gen.hpp.
 callouts_gen = custom_target('callouts-gen.hpp'.underscorify(),
     input: [
@@ -60,6 +77,38 @@
     output: 'callouts-gen.hpp',
     command: [ python_prog, '@INPUT0@', '-i', '@INPUT2@', '-o', '@OUTPUT0@' ],
 )
+# Generate elog-lookup.cpp
+elog_lookup_gen = custom_target('elog-lookup.cpp'.underscorify(),
+    input: files(
+        'tools/elog-gen.py',
+        'tools/phosphor-logging/templates/elog-lookup-template.mako.cpp',
+    ),
+    output: 'elog-lookup.cpp',
+    command: [
+        python_prog, '@INPUT0@',
+        '-t', '',
+        '-m', '@INPUT1@',
+        '-y', yamldir,
+        '-u', meson.current_source_dir() / '../tools/',
+        '-o', '@OUTPUT0@',
+    ],
+)
+# Generate elog-process-metadata.cpp
+elog_process_gen = custom_target('elog-process-metadata.cpp'.underscorify(),
+    input: files(
+        'tools/elog-gen.py',
+        'tools/phosphor-logging/templates/elog-process-metadata.mako.cpp',
+    ),
+    output: 'elog-process-metadata.cpp',
+    command: [
+        python_prog, '@INPUT0@',
+        '-t', '',
+        '-m', '@INPUT1@',
+        '-y', yamldir,
+        '-u', meson.current_source_dir() / '../tools/',
+        '-o', '@OUTPUT0@',
+    ],
+)
 
 subdir('phosphor-logging')
 
@@ -97,3 +146,27 @@
     sources: [ callouts_gen, elog_errors_gen ],
     dependencies: [ sdbusplus_dep, pdi_dep, sdeventplus_dep],
 )
+
+# Generate daemon.
+executable('phosphor-log-manager',
+    generated_sources,
+    elog_lookup_gen,
+    elog_process_gen,
+    'elog_entry.cpp',
+    'elog_meta.cpp',
+    'elog_serialize.cpp',
+    'extensions.cpp',
+    'log_manager.cpp',
+    'log_manager_main.cpp',
+    'sdjournal.cpp',
+    'util.cpp',
+    include_directories: include_directories('gen'),
+    link_with: libphosphor_logging,
+    dependencies: [
+        cereal_dep,
+        pdi_dep,
+        sdbusplus_dep,
+        sdeventplus_dep
+    ],
+    install: true,
+)
diff --git a/meson_options.txt b/meson_options.txt
index 0a8c744..5f3bd2f 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -5,3 +5,16 @@
     value: 'callouts/callouts-example.yaml',
     description: 'Path to Callout YAML',
 )
+
+option(
+    'error_cap',
+    type: 'integer',
+    value: 200,
+    description: 'Max number of error enttries allowed for commit',
+)
+option(
+    'error_info_cap',
+    type: 'integer',
+    value: 10,
+    description: 'Cap on informational (and below) severity errors',
+)
diff --git a/subprojects/cereal.wrap b/subprojects/cereal.wrap
new file mode 100644
index 0000000..a4cb7ec
--- /dev/null
+++ b/subprojects/cereal.wrap
@@ -0,0 +1,4 @@
+[wrap-git]
+url = https://github.com/USCiLab/cereal.git
+revision = HEAD
+# need at least for C++20 fixes 3e4d1b84cab4891368d2179a61a7ba06a5693e7f