diff --git a/.gitignore b/.gitignore
index b25c15b..022b387 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 *~
+dbgdata-*
diff --git a/README.md b/README.md
index d1ba93e..eec0fa1 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,53 @@ zpool auto-switcher
 ===================
 
 TODO: documentation...still early days, but should be similar to my NiceHash
-and MiningPoolHub switchers.
\ No newline at end of file
+and MiningPoolHub switchers.
+
+zpool's API is largely undocumented.  A further complication is that their
+profitability estimates aren't reported in the same units for each
+algorithm, and while some deviations from the norm are noted on their
+homepage, others aren't.  I'm mostly going by trial and error, and by
+comparison with what MiningPoolHub reports for the algorithms the two pools
+have in common.
+
+miners.json
+===========
+
+Should ultimately be able to share this with the MiningPoolHub and NiceHash
+switchers.  Each available algorithm is described with the following values:
+
+bin: command line to launch miner.  {HOST}, {PORT}, {USERNAME}, and
+  {PASSWORD} will be filled in by the switcher.
+power_limit: power limit for GPU(s)
+gpu_oc: GPU overclock, Hz (or negative for underclock; 0 for stock speed)
+mem_oc: memory overclock, Hz (or negative or zero)
+fan: fan speed, % (0 for automatic)
+speed: total mining speed for this algorithm, GH/s
+power: total power consumption, kW
+
+gpu_oc, mem_oc, and fan may be provided as a single value each to be applied
+to all cards or as an array each to set cards individually.
+
+algo_map.json
+=============
+
+Since different pools may use different labels for the same algorithm, we
+need to map what the pool uses to what we used in miners.json.  The index is
+the pool's label; the value is our label.
+
+conf.json
+=========
+
+The values the zpool switcher cares about are these:
+
+card_type: if set to "nvidia", we can set card clocks, fan speeds, etc. 
+  Other values (such as "amd") aren't implemented.
+currency: Coinbase only supports "USD" for this value.  If you use a
+  different exchange's data, you may have other options available.
+pwrcost: your cost of electric power, in currency units per kWh
+min_profit: if the rig's profit falls below this value, stop mining
+payment_currency: how you want zpool to pay you
+payment_addr: where zpool should send payment
+
+The user_name and miner_name values in the example aren't used by the zpool
+switcher, but may be used by other switchers.
diff --git a/algo-map.json b/algo-map.json
new file mode 100644
index 0000000..c4c9993
--- /dev/null
+++ b/algo-map.json
@@ -0,0 +1,34 @@
+{
+  "bitcore": "",
+  "blake2s": "",
+  "blakecoin": "",
+  "c11": "",
+  "equihash": "Equihash",
+  "groestl": "Groestl",
+  "hsr": "",
+  "keccak": "Keccak",
+  "lbry": "",
+  "lyra2v2": "Lyra2RE2",
+  "m7m": "",
+  "myr-gr": "Myriad-Groestl",
+  "neoscrypt": "NeoScrypt",
+  "nist5": "",
+  "phi": "",
+  "polytimos": "",
+  "quark": "",
+  "qubit": "Qubit",
+  "scrypt": "Scrypt",
+  "sha256": "",
+  "sib": "",
+  "skein": "Skein",
+  "skunk": "",
+  "timetravel": "",
+  "tribus": "",
+  "x11": "X11",
+  "x11evo": "",
+  "x13": "",
+  "x14": "",
+  "x17": "",
+  "xevan": "",
+  "yescrypt": ""
+}
\ No newline at end of file
diff --git a/conf.json b/conf.json
new file mode 100644
index 0000000..38eaad8
--- /dev/null
+++ b/conf.json
@@ -0,0 +1,10 @@
+{
+  "user_name": "salfter",
+  "miner_name": "miner10",
+  "card_type": "nvidia",
+  "currency": "USD",
+  "pwrcost": 0.107,
+  "min_profit": 0.0,
+  "payment_currency": "BTC",
+  "payment_addr": "35KZnxdfnQyzDr6yWDFxXuuFELyiwf2G7V"
+}
diff --git a/miners.json b/miners.json
index ebfc4ad..77b44ac 100644
--- a/miners.json
+++ b/miners.json
@@ -1,85 +1,85 @@
   {
     "Blake-Vanilla":
     {
-      "bin": "/home/m1/SPccminer/ccminer -a vanilla -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/SPccminer/ccminer -a vanilla -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0, "power": 0.389
     },
     "Cryptonight":
     {
-      "bin": "/home/m1/KTccminer-cryptonight/ccminer -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/KTccminer-cryptonight/ccminer -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.000002, "power": 0.325
     },
     "Equihash":
     {
-      "bin": "/home/m1/zec/v3_4/miner --eexit 3 --fee 0 --pec --server {HOST} --user {NAME}.{MINER} --pass z --port {PORT}",
+      "bin": "/home/m1/zec/v3_4/miner --eexit 3 --fee 0 --pec --server {HOST} --user {USERNAME} --pass {PASSWORD} --port {PORT}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.000001140, "power": 0.397
     },
     "Ethash":
     {
-      "bin": "/home/m1/eth/ethminer_12dev2/ethminer -S {HOST}:{PORT} -O {NAME}.{MINER}:x -U",
+      "bin": "/home/m1/eth/ethminer_12dev2/ethminer -S {HOST}:{PORT} -O {USERNAME}:{PASSWORD} -U",
       "power_limit": [115,115,115,95], "gpu_oc": -200, "mem_oc": 1000, "fan": 0,
       "speed": 0.087, "power": 0.397
     },
     "Groestl":
     {
-      "bin": "/home/m1/SPccminer/ccminer -a groestl -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/SPccminer/ccminer -a groestl -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.0853, "power": 0.392
     },
     "Keccak":
     {
-      "bin": "/home/m1/SPccminer/ccminer -a keccak -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/SPccminer/ccminer -a keccak -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 1.45, "power": 0.391
     },
     "Lyra2RE2":
     {
-      "bin": "/home/m1/SPccminer/ccminer -a lyra2v2 -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/SPccminer/ccminer -a lyra2v2 -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.081, "power": 0.386
     },
     "Myriad-Groestl":
     {
-      "bin": "/home/m1/SPccminer/ccminer -a myr-gr -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/SPccminer/ccminer -a myr-gr -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.158, "power": 0.391
     },
     "Qubit":
     {
-      "bin": "/home/m1/SPccminer/ccminer -a qubit -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/SPccminer/ccminer -a qubit -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.0509, "power": 0.382
     },
     "Scrypt":
     {
-      "bin": "/home/m1/SPccminer/ccminer -a scrypt -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/SPccminer/ccminer -a scrypt -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.00224, "power": 0.403
     },
     "Sia":
     {
-      "bin": "/home/m1/SPccminer/ccminer -a sia -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/SPccminer/ccminer -a sia -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0, "power": 0.403
     },
     "Skein":
     {
-      "bin": "/home/m1/ASccminer/ccminer -a skein -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/ASccminer/ccminer -a skein -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.835, "power": 0.383
     },
     "NeoScrypt":
     {
-      "bin": "/home/m1/nsgminer/nsgminer -k neoscrypt -g 1 -w 64 -I 15 -o stratum+tcp://{HOST}:{PORT} -O {NAME}.{MINER}:x",
+      "bin": "/home/m1/nsgminer/nsgminer -k neoscrypt -g 1 -w 64 -I 15 -o stratum+tcp://{HOST}:{PORT} -O {USERNAME}:{PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.0027, "power": 0.397
     },
     "X11":
     {
-      "bin": "/home/m1/TPccminer/ccminer -a x11 -o stratum+tcp://{HOST}:{PORT} -u {NAME}.{MINER} -p x",
+      "bin": "/home/m1/TPccminer/ccminer -a x11 -o stratum+tcp://{HOST}:{PORT} -u {USERNAME} -p {PASSWORD}",
       "power_limit": [115,115,115,95], "gpu_oc": [-100,-100,-100,0], "mem_oc": 0, "fan": 0,
       "speed": 0.0327, "power": 0.403
     }
diff --git a/zpool-switch.py b/zpool-switch.py
index 093a985..4f737d3 100755
--- a/zpool-switch.py
+++ b/zpool-switch.py
@@ -17,7 +17,24 @@ import subprocess
 import os
 import socket
 
-currency="USD"
+# load config
+
+DEBUG=False
+
+cfg=json.loads(open(sys.argv[1]).read())
+miners=json.loads(open(sys.argv[2]).read())
+algo_map=json.loads(open(sys.argv[3]).read())
+
+card_type=cfg["card_type"]
+#user_name=cfg["user_name"]
+#miner_name=cfg["miner_name"]
+currency=cfg["currency"]
+pwrcost=cfg["pwrcost"]
+min_profit=cfg["min_profit"]
+payment_currency=cfg["payment_currency"]
+payment_addr=cfg["payment_addr"]
+
+os.environ["DISPLAY"]=":0"
 
 # IPv4 address lookup
 
@@ -36,7 +53,63 @@ def fetch(prot, host, path, forceipv4=False):
 
 # main
 
-exchrate=float(json.loads(fetch("https", "api.coinbase.com", "/v2/exchange-rates?currency=BTC"))["data"]["rates"][currency])
-data=json.loads(fetch("http", "www.zpool.ca", "/api/currencies", True))
+if (DEBUG!=True):
+  exchrate=float(json.loads(fetch("https", "api.coinbase.com", "/v2/exchange-rates?currency=BTC"))["data"]["rates"][currency])
+  data=json.loads(fetch("http", "www.zpool.ca", "/api/status", True))
+else:
+  exchrate=float(json.loads(open("dbgdata-exchange-rates").read())["data"]["rates"][currency])
+  data=json.loads(open("dbgdata-status").read())
 
-pprint.pprint(exchrate)
+# update algo map
+
+changed=False
+for i in data:
+  try:
+    k=algo_map[i]
+  except:
+    algo_map[i]=""
+    changed=True
+
+if (changed==True):    
+  with open(sys.argv[3], "w") as outfile:
+    json.dump(algo_map, outfile, sort_keys=True, indent=2)
+
+# adjust estimates so they're all in the same units: BTC/day per GH/s 
+for i in data:
+  data[i]["adjusted_estimate"]=float(data[i]["estimate_current"])*1000
+try:
+  data["sha256"]["adjusted_estimate"]/=1000000000000
+except:
+  pass
+try:
+  data["equihash"]["adjusted_estimate"]*=1000
+except:
+  pass
+for i in ["scrypt", "blakecoin", "blake2s", "decred", "x11", "quark", "qubit", "keccak"]:
+  try:
+    data[i]["adjusted_estimate"]/=1000
+  except:
+    pass
+  
+coins={}
+for i in data:
+  if (algo_map[i]!=""):
+    coins[i]=miners[algo_map[i]]
+    coins[i]["bin"]=coins[i]["bin"].format(HOST=i+".mine.zpool.ca", PORT=data[i]["port"], USERNAME=payment_addr, PASSWORD="c="+payment_currency)
+    coins[i]["algo"]=i
+    coins[i]["mapped_algo"]=algo_map[i]
+    coins[i]["name"]=i
+    coins[i]["estimate"]=data[i]["adjusted_estimate"]*float(coins[i]["speed"]) # factor in our speed    
+    
+for i in data:
+  print(i+": "+str(data[i]["estimate_current"])+" "+str(data[i]["adjusted_estimate"]))
+  
+print("")
+
+for i in coins:
+  print(i+": "+str(coins[i]["estimate"]))
+
+print("")
+
+for i in coins:
+  print(i+": "+str(coins[i]["bin"]))