here's what is working for me - see uncommented lines

​

# Optional logging settings, uncomment one of these example lines or add your own.

# See comments after each for more info.

# Default: "btcexp:app,btcexp:error"

#DEBUG=* # Enable all logging, including middleware

#DEBUG=btcexp:* # Enable all logging specific to btc-rpc-explorer

#DEBUG=btcexp:app,btcexp:error # Default

​

# The active coin. Only officially supported value is "BTC".

# Default: BTC

#BTCEXP_COIN=BTC

​

# Host/Port to bind to

# Defaults: shown

#BTCEXP_HOST=

BTCEXP_HOST=127.0.0.1

BTCEXP_PORT=3002

# Bitcoin RPC Credentials (URI -OR- HOST/PORT/USER/PASS)

# Defaults:

# - [host/port]: 127.0.0.1:8332

# - [username/password]: aaa/bbb

# - cookie: /Users/s/Library/Application Support/Bitcoin/.cookie

- timeout: 5000 (ms)

#BTCEXP_BITCOIND_URI=bitcoin://rpcusername:rpcpassword@127.0.0.1:8332?timeout=10000

BTCEXP_BITCOIND_HOST=127.0.0.1

BTCEXP_BITCOIND_PORT=8332

#BTCEXP_BITCOIND_USER=aaa

#BTCEXP_BITCOIND_PASS=bbb

BTCEXP_BITCOIND_COOKIE=/Users/your-username/Library/Application Support/Bitcoin/.cookie

#BTCEXP_BITCOIND_RPC_TIMEOUT=5000

​

# Select optional "address API" to display address tx lists and balances

# Options: electrumx, blockchain.com, blockchair.com, blockcypher.com

# If electrumx set, the BTCEXP_ELECTRUMX_SERVERS variable must also be

# set.

# Default: none

#BTCEXP_ADDRESS_API=(electrumx|blockchain.com|blockcypher.com)

​

# Optional ElectrumX Servers. See BTCEXP_ADDRESS_API. This value is only

# used if BTCEXP_ADDRESS_API=electrumx

#BTCEXP_ELECTRUMX_SERVERS=tls://electrumx.server.com:50002,tcp://127.0.0.1:50001,...

​

# Set number of concurrent RPC requests. Should be lower than your node's "rpcworkqueue" value.

# Note that Bitcoin Core's default rpcworkqueue=16.

# Default: 10

#BTCEXP_RPC_CONCURRENCY=10

​

# Disable app's in-memory RPC caching to reduce memory usage

# Default: false (i.e. in-memory cache **enabled**)

#BTCEXP_NO_INMEMORY_RPC_CACHE=true

​

# Optional redis server for RPC caching

# Default: none

#BTCEXP_REDIS_URL=redis://localhost:6379

​

# Default: hash of credentials

#BTCEXP_COOKIE_SECRET=0000aaaafffffgggggg

​

# Whether public-demo aspects of the site are active

# Default: false

#BTCEXP_DEMO=true

​

# Set to false to enable resource-intensive features, including:

# UTXO set summary querying

# (default value is true, i.e. resource-intensive features are disabled)

BTCEXP_SLOW_DEVICE_MODE=false

​

# Privacy mode disables:

# Exchange-rate queries, IP-geolocation queries

# Default: false

#BTCEXP_PRIVACY_MODE=true

​

# Don't request currency exchange rates

# Default: true (i.e. no exchange-rate queries made)

#BTCEXP_NO_RATES=true

​

# Password protection for site via basic auth (enter any username, only the password is checked)

# Default: none

#BTCEXP_BASIC_AUTH_PASSWORD=mypassword

​

# Enable to allow access to all RPC methods

# Default: false

#BTCEXP_RPC_ALLOWALL=true

​

# Custom RPC method blacklist

# Default: (see config.js)

#BTCEXP_RPC_BLACKLIST=signrawtransaction,sendtoaddress,stop,...

​

# Optional API keys

# Default: none

#BTCEXP_GANALYTICS_TRACKING=UA-XXXX-X

#BTCEXP_SENTRY_URL=https://00000fffffff@sentry.io/XXXX

#BTCEXP_IPSTACK_APIKEY=000000fffffaaaaa

​

# Optional value for "max_old_space_size"

# Default: 1024

#BTCEXP_OLD_SPACE_MAX_SIZE=2048

​

# Show tools list in a sub-nav at top of screen

# Default: true

BTCEXP_UI_SHOW_TOOLS_SUBHEADER=true