diff --git a/.env.example b/.env.example
new file mode 100644
index 00000000..4fbcf2d2
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,56 @@
+# Starting block height for node synchronization (0 = start from the beginning)
+# START_HEIGHT=0
+
+# Stop block height for node synchronization (Infinity = keep syncing until stopped)
+# STOP_HEIGHT="Infinity"
+
+# Arweave node to use for fetching data
+# TRUSTED_NODE_URL="https://arweave.net"
+
+# Arweave node to use for proxying requests
+# TRUSTED_GATEWAY_URL="https://arweave.net"
+
+# ArNS gateway
+# TRUSTED_ARNS_GATEWAY_URL="https://__NAME__.arweave.dev"
+
+# If true, use indexed data as a cache and skip fetching data from the node
+# SKIP_CACHE=false
+
+# Adds an "INSTANCE_ID" field to output logs
+# INSTANCE_ID=""
+
+# Sets the format of output logs, accepts "simple" and "json"
+# LOG_FORMAT="simple"
+
+# AR.IO node exposed port number
+# PORT=4000
+
+# Number from 0 to Infinity, representing the probability of a request failing
+# SIMULATED_REQUEST_FAILURE_RATE=0
+
+# Arweave wallet address used for staking and rewards
+# AR_IO_WALLET=""
+
+# Admin key used for accessing the admin API
+# ADMIN_API_KEY="secret"
+
+# If true, ar.io node will start indexing missing bundles
+# BACKFILL_BUNDLE_RECORDS=false
+
+# If true, all indexed bundles will be reprocessed with the new filters (you can use this when you change the filters)
+# FILTER_CHANGE_REPROCESS=false
+
+# Only bundles compliant with this filter will be unbundled
+# ANS104_UNBUNDLE_FILTER={"never": true}
+
+# Only bundles compliant with this filter will be indexed
+# ANS104_INDEX_FILTER={"never": true}
+
+# Root host for ArNS
+# ARNS_ROOT_HOST=""
+
+# Protocol setting in process of creating sandbox domain in ArNS (ARNS_ROOT_HOST needs to be set for this env to have any effect)
+# SANDBOX_PROTOCOL=""
+
+# If true, start indexing blocks, tx, ANS104 bundles
+# START_WRITERS=true
diff --git a/.gitignore b/.gitignore
index 6e897ae4..4255f5a2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,5 +18,8 @@ test-results.json
 /.vscode
 .DS_Store
 
+# JetBrains
+/.idea
+
 # Exceptions
 !/data/.gitkeep
diff --git a/docs/envs.md b/docs/envs.md
new file mode 100644
index 00000000..d1e0d320
--- /dev/null
+++ b/docs/envs.md
@@ -0,0 +1,24 @@
+# ENVs
+This document describes the environment variables that can be used to configure the `ar.io` node.
+
+| ENV_NAME                       | TYPE                 | DEFAULT_VALUE                  | DESCRIPTION                                                                                                                     |
+|--------------------------------|----------------------|--------------------------------|---------------------------------------------------------------------------------------------------------------------------------|
+| START_HEIGHT                   | Number or "Infinity" | 0                              | Starting block height for node synchronization (0 = start from the beginning)                                                   |
+| STOP_HEIGHT                    | Number or "Infinity" | "Infinity"                     | Stop block height for node synchronization (Infinity = keep syncing until stopped)                                              |
+| TRUSTED_NODE_URL               | String               | "https://arweave.net"          | Arweave node to use for fetching data                                                                                           |
+| TRUSTED_GATEWAY_URL            | String               | "https://arweave.net"          | Arweave node to use for proxying requests                                                                                       |
+| TRUSTED_ARNS_GATEWAY_URL       | String               | "https://__NAME__.arweave.dev" | ArNS gateway                                                                                                                    |
+| INSTANCE_ID                    | String               | ""                             | Adds an "INSTACE_ID" field to output logs                                                                                       |
+| LOG_FORMAT                     | String               | "simple"                       | Sets the format of output logs, accepts "simple" and "json"                                                                     |
+| SKIP_CACHE                     | Boolean              | false                          | If true, use indexed data as a cache and skip fetching data from the node                                                       |
+| PORT                           | Number               | 4000                           | AR.IO node exposed port number                                                                                                  |
+| SIMULATED_REQUEST_FAILURE_RATE | Number               | 0                              | Number from 0 to Infinity, representing the probability of a request failing                                                    |
+| AR_IO_WALLET                   | String               | ""                             | Arweave wallet address used for staking and rewards                                                                             |
+| ADMIN_API_KEY                  | String               | Generated                      | API key used for admin API requests (if not set, it's generated and logged into the console)                                    |
+| BACKFILL_BUNDLE_RECORDS        | Boolean              | false                          | If true, ar.io node will start indexing missing bundles                                                                         |
+| FILTER_CHANGE_REPROCESS        | Boolean              | false                          | If true, all indexed bundles will be reprocessed with the new filters (you can use this when you change the filters)            |
+| ANS104_UNBUNDLE_FILTER         | String               | '{"never": true}'              | Only bundles compliant with this filter will be unbundled                                                                       |
+| ANS104_INDEX_FILTER            | String               | '{"never": true}'              | Only bundles compliant with this filter will be indexed                                                                         |
+| ARNS_ROOT_HOST                 | String               | undefined                      | Domain name for ArNS host                                                                                                       |
+| SANDBOX_PROTOCOL               | String               | undefined                      | Protocol setting in process of creating sandbox domain in ArNS (ARNS_ROOT_HOST needs to be set for this env to have any effect) |
+| START_WRITERS                  | Boolean              | true                           | If true, start indexing blocks, tx, ANS104 bundles                                                                              |
diff --git a/envoy/envoy.template.yaml b/envoy/envoy.template.yaml
index 8968d2b6..c95fb9a6 100644
--- a/envoy/envoy.template.yaml
+++ b/envoy/envoy.template.yaml
@@ -97,6 +97,10 @@ static_resources:
                               retry_on: '5xx,reset'
                               num_retries: 5
                         - match: { prefix: '/' }
+                          response_headers_to_add:
+                            - header:
+                                key: 'Cache-Control'
+                                value: 'public, max-age=30'
                           route:
                             cluster: legacy_gateways
                             retry_policy: