diff --git a/lib/observer.sh b/lib/observer.sh
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--- /dev/null
+++ b/lib/observer.sh
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+#!/usr/bin/env bash
+# ==============================================================================
+# Home Assistant Community Add-ons: Bashio
+# Bashio is an bash function library for use with Home Assistant add-ons.
+#
+# It contains a set of commonly used operations and can be used
+# to be included in add-on scripts to reduce code duplication across add-ons.
+# ==============================================================================
+
+# ------------------------------------------------------------------------------
+# Updates the Observer plugin to the latest version.
+#
+# Arguments:
+#   $1 Version to update to (optional)
+# ------------------------------------------------------------------------------
+function bashio::observer.update() {
+    local version=${1:-}
+
+    bashio::log.trace "${FUNCNAME[0]}:" "$@"
+
+    if bashio::var.has_value "${version}"; then
+        version=$(bashio::var.json version "${version}")
+        bashio::api.supervisor POST /observer/update "${version}"
+    else
+        bashio::api.supervisor POST /observer/update
+    fi
+    bashio::cache.flush_all
+}
+
+# ------------------------------------------------------------------------------
+# Returns a JSON object with generic information about the Observer plugin.
+#
+# Arguments:
+#   $1 Cache key to store results in (optional)
+#   $2 jq Filter to apply on the result (optional)
+# ------------------------------------------------------------------------------
+function bashio::observer() {
+    local cache_key=${1:-'observer.info'}
+    local filter=${2:-}
+    local info
+    local response
+
+    bashio::log.trace "${FUNCNAME[0]}" "$@"
+
+    if bashio::cache.exists "${cache_key}"; then
+        bashio::cache.get "${cache_key}"
+        return "${__BASHIO_EXIT_OK}"
+    fi
+
+    if bashio::cache.exists 'observer.info'; then
+        info=$(bashio::cache.get 'observer.info')
+    else
+        info=$(bashio::api.supervisor GET /observer/info false)
+        bashio::cache.set 'observer.info' "${info}"
+    fi
+
+    response="${info}"
+    if bashio::var.has_value "${filter}"; then
+        response=$(bashio::jq "${info}" "${filter}")
+    fi
+
+    bashio::cache.set "${cache_key}" "${response}"
+    printf "%s" "${response}"
+
+    return "${__BASHIO_EXIT_OK}"
+}
+
+# ------------------------------------------------------------------------------
+# Returns the Observer version used.
+# ------------------------------------------------------------------------------
+function bashio::observer.version() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer 'observer.info.version' '.version'
+}
+
+# ------------------------------------------------------------------------------
+# Returns the latest version of the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.version_latest() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer 'observer.info.version_latest' '.version_latest'
+}
+
+# ------------------------------------------------------------------------------
+# Checks if there is an update available for the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.update_available() {
+    bashio::log.trace "${FUNCNAME[0]}" "$@"
+    bashio::observer 'observer.info.update_available' '.update_available // false'
+}
+
+# ------------------------------------------------------------------------------
+# Returns the host of the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.host() {
+    bashio::log.trace "${FUNCNAME[0]}" "$@"
+    bashio::observer 'observer.info.host' '.host'
+}
+
+# ------------------------------------------------------------------------------
+# List all available stats about the Observer plugin.
+#
+# Arguments:
+#   $1 Cache key to store results in (optional)
+#   $2 jq Filter to apply on the result (optional)
+# ------------------------------------------------------------------------------
+function bashio::observer.stats() {
+    local cache_key=${1:-'observer.stats'}
+    local filter=${2:-}
+    local info
+    local response
+
+    bashio::log.trace "${FUNCNAME[0]}" "$@"
+
+    if bashio::cache.exists "${cache_key}"; then
+        bashio::cache.get "${cache_key}"
+        return "${__BASHIO_EXIT_OK}"
+    fi
+
+    if bashio::cache.exists 'observer.stats'; then
+        info=$(bashio::cache.get 'observer.stats')
+    else
+        info=$(bashio::api.supervisor GET /observer/stats false)
+        bashio::cache.set 'observer.stats' "${info}"
+    fi
+
+    response="${info}"
+    if bashio::var.has_value "${filter}"; then
+        response=$(bashio::jq "${info}" "${filter}")
+    fi
+
+    bashio::cache.set "${cache_key}" "${response}"
+    printf "%s" "${response}"
+
+    return "${__BASHIO_EXIT_OK}"
+}
+
+# ------------------------------------------------------------------------------
+# Returns CPU usage from the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.cpu_percent() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer.stats 'observer.stats.cpu_percent' '.cpu_percent'
+}
+
+# ------------------------------------------------------------------------------
+# Returns memory usage from the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.memory_usage() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer.stats 'observer.stats.memory_usage' '.memory_usage'
+}
+
+# ------------------------------------------------------------------------------
+# Returns memory limit from the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.memory_limit() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer.stats 'observer.stats.memory_limit' '.memory_limit'
+}
+
+# ------------------------------------------------------------------------------
+# Returns memory usage in percent from the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.memory_percent() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer.stats 'observer.stats.memory_percent' '.memory_percent'
+}
+
+# ------------------------------------------------------------------------------
+# Returns outgoing network usage from the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.network_tx() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer.stats 'observer.stats.network_tx' '.network_tx'
+}
+
+# ------------------------------------------------------------------------------
+# Returns incoming network usage from the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.network_rx() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer.stats 'observer.stats.network_rx' '.network_rx'
+}
+
+# ------------------------------------------------------------------------------
+# Returns disk read usage from the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.blk_read() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer.stats 'observer.stats.blk_read' '.blk_read'
+}
+
+# ------------------------------------------------------------------------------
+# Returns disk write usage from the Observer plugin.
+# ------------------------------------------------------------------------------
+function bashio::observer.blk_write() {
+    bashio::log.trace "${FUNCNAME[0]}"
+    bashio::observer.stats 'observer.stats.blk_write' '.blk_write'
+}