I had to adjust some things to build under Archlinux - Nexus/20.X

I had to roll a couple files back and adjust as below, not sure if this matters, as Arch uses bleeding edge packages sometimes...

diff --git a/src/stream/FFmpegCatchupStream.cpp b/src/stream/FFmpegCatchupStream.cpp
index a47ad8f..dd2e995 100644
--- a/src/stream/FFmpegCatchupStream.cpp
+++ b/src/stream/FFmpegCatchupStream.cpp
@@ -371,7 +371,7 @@ void FFmpegCatchupStream::UpdateCurrentPTS()
 
 bool FFmpegCatchupStream::IsRealTimeStream()
 {
-  if (kodi::addon::GetSettingBoolean("forceRealtimeOffCatchup"))
+  if (kodi::GetSettingBoolean("forceRealtimeOffCatchup"))
     return false;
 
   return m_isRealTimeStream && m_pFormatContext->duration <= 0;
diff --git a/src/stream/FFmpegStream.cpp b/src/stream/FFmpegStream.cpp
index 05dbc39..8fd9c00 100644
--- a/src/stream/FFmpegStream.cpp
+++ b/src/stream/FFmpegStream.cpp
@@ -151,7 +151,7 @@ FFmpegStream::FFmpegStream(IManageDemuxPacket* demuxPacketManager, const Propert
   m_dtsAtDisplayTime = STREAM_NOPTS_VALUE;
 
   FFmpegLog::SetLogLevel(AV_LOG_INFO);
-  FFmpegLog::SetEnabled(kodi::addon::GetSettingBoolean("allowFFmpegLogging"));
+  FFmpegLog::SetEnabled(kodi::GetSettingBoolean("allowFFmpegLogging"));
   av_log_set_callback(ff_avutil_log);
 }
 
@@ -181,7 +181,7 @@ bool FFmpegStream::Open(const std::string& streamUrl, const std::string& mimeTyp
     FFmpegLog::SetEnabled(true);
     av_dump_format(m_pFormatContext, 0, CURL::GetRedacted(streamUrl).c_str(), 0);
   }
-  FFmpegLog::SetEnabled(kodi::addon::GetSettingBoolean("allowFFmpegLogging"));
+  FFmpegLog::SetEnabled(kodi::GetSettingBoolean("allowFFmpegLogging"));
 
   return m_opened;
 }
@@ -709,7 +709,7 @@ bool FFmpegStream::Open(bool fileinfo)
   }
 
   // Avoid detecting framerate if our advanced settings says so
-  if (!kodi::addon::GetSettingBoolean("probeForFps"))
+  if (!kodi::GetSettingBoolean("probeForFps"))
     m_pFormatContext->fps_probe_size = 0;
 
   // analyse very short to speed up mjpeg playback start
@@ -924,7 +924,7 @@ bool FFmpegStream::OpenWithFFmpeg(AVInputFormat* iformat, const AVIOInterruptCB&
   if (result < 0)
   {
     // We only process this condition for manifest streams when this setting is disabled
-    if (!kodi::addon::GetSettingBoolean("useFastOpenForManifestStreams") || m_manifestType.empty())
+    if (!kodi::GetSettingBoolean("useFastOpenForManifestStreams") || m_manifestType.empty())
     {
       m_pFormatContext->flags |= AVFMT_FLAG_PRIV_OPT;
       if (avformat_open_input(&m_pFormatContext, strFile.c_str(), iformat, &options) < 0)
@@ -1244,7 +1244,7 @@ unsigned int FFmpegStream::HLSSelectProgram()
 {
   unsigned int prog = UINT_MAX;
 
-  int bandwidth = kodi::addon::GetSettingInt("streamBandwidth") * 1000;
+  int bandwidth = kodi::GetSettingInt("streamBandwidth") * 1000;
   if (bandwidth <= 0)
     bandwidth = INT_MAX;
 
@@ -1907,7 +1907,7 @@ DemuxStream* FFmpegStream::AddStream(int streamIdx)
       // }
       case AVMEDIA_TYPE_SUBTITLE:
       {
-        if (pStream->codecpar->codec_id == AV_CODEC_ID_DVB_TELETEXT && kodi::addon::GetSettingBoolean("enableTeletext"))
+        if (pStream->codecpar->codec_id == AV_CODEC_ID_DVB_TELETEXT && kodi::GetSettingBoolean("enableTeletext"))
         {
           DemuxStreamTeletext* st = new DemuxStreamTeletext();
           stream = st;
diff --git a/src/stream/TimeshiftBuffer.cpp b/src/stream/TimeshiftBuffer.cpp
index 78e5c1b..9e7f08e 100644
--- a/src/stream/TimeshiftBuffer.cpp
+++ b/src/stream/TimeshiftBuffer.cpp
@@ -20,7 +20,7 @@ using namespace kodi::tools;
 TimeshiftBuffer::TimeshiftBuffer(IManageDemuxPacket* demuxPacketManager)
   : m_demuxPacketManager(demuxPacketManager)
 {
-  m_timeshiftBufferPath = kodi::addon::GetSettingString("timeshiftBufferPath");
+  m_timeshiftBufferPath = kodi::GetSettingString("timeshiftBufferPath");
   if (m_timeshiftBufferPath.empty())
   {
     m_timeshiftBufferPath = DEFAULT_TIMESHIFT_BUFFER_PATH;
@@ -34,9 +34,9 @@ TimeshiftBuffer::TimeshiftBuffer(IManageDemuxPacket* demuxPacketManager)
   if (!kodi::vfs::DirectoryExists(m_timeshiftBufferPath))
     kodi::vfs::CreateDirectory(m_timeshiftBufferPath);
 
-  if (!kodi::addon::CheckSettingBoolean("timeshiftEnableLimit", m_enableOnDiskSegmentLimit))
+  if (!kodi::CheckSettingBoolean("timeshiftEnableLimit", m_enableOnDiskSegmentLimit))
     m_enableOnDiskSegmentLimit = true;
-  float onDiskTotalLengthHours = kodi::addon::GetSettingFloat("timeshiftOnDiskLength");
+  float onDiskTotalLengthHours = kodi::GetSettingFloat("timeshiftOnDiskLength");
   if (onDiskTotalLengthHours <= 0.0f)
     onDiskTotalLengthHours = DEFAULT_TIMESHIFT_SEGMENT_ON_DISK_LENGTH_HOURS;
   int onDiskTotalLengthSeconds = onDiskTotalLengthHours * 60 * 60;

Review the reported changes in src/stream/FFmpegCatchupStream.cpp, src/stream/FFmpegStream.cpp, and src/stream/TimeshiftBuffer.cpp, starting with the existing setting-access APIs and the Arch Linux build context. Confirm whether the reported adjustments are required and verify that the addon builds successfully with the corrected references.