diff --git a/examples/async_await/dfx.json b/examples/async_await/dfx.json
index 425a4963bf..9d0e506da5 100644
--- a/examples/async_await/dfx.json
+++ b/examples/async_await/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "async_await": {
             "type": "custom",
+            "main": "src/async_await.ts",
             "build": "npx azle async_await",
-            "root": "src",
-            "ts": "src/async_await.ts",
             "candid": "src/async_await.did",
             "wasm": ".azle/async_await/async_await.wasm",
             "gzip": true,
diff --git a/examples/audio_recorder/dfx.json b/examples/audio_recorder/dfx.json
index 65df40b322..dd517f04ff 100644
--- a/examples/audio_recorder/dfx.json
+++ b/examples/audio_recorder/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "audio_recorder": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle audio_recorder",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/audio_recorder/audio_recorder.wasm",
             "gzip": true,
diff --git a/examples/basic_bitcoin/dfx.json b/examples/basic_bitcoin/dfx.json
index 923ca7922e..93bff9912b 100644
--- a/examples/basic_bitcoin/dfx.json
+++ b/examples/basic_bitcoin/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "basic_bitcoin": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle basic_bitcoin",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/basic_bitcoin/basic_bitcoin.wasm.gz",
             "declarations": {
diff --git a/examples/bitcoin/dfx.json b/examples/bitcoin/dfx.json
index 3942f82d05..61d2e6794b 100644
--- a/examples/bitcoin/dfx.json
+++ b/examples/bitcoin/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "bitcoin": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle bitcoin",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/bitcoin/bitcoin.wasm",
             "gzip": true,
diff --git a/examples/blob_array/dfx.json b/examples/blob_array/dfx.json
index 744bb07531..e71434b346 100644
--- a/examples/blob_array/dfx.json
+++ b/examples/blob_array/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "blob_array": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle blob_array",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/blob_array/blob_array.wasm",
             "gzip": true,
diff --git a/examples/bytes/dfx.json b/examples/bytes/dfx.json
index cfde62ab53..ed1c407ca3 100644
--- a/examples/bytes/dfx.json
+++ b/examples/bytes/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "bytes_canister": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle bytes_canister",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/bytes_canister/bytes_canister.wasm",
             "gzip": true,
diff --git a/examples/call_raw/dfx.json b/examples/call_raw/dfx.json
index 8d08c8f79c..313cfd92e6 100644
--- a/examples/call_raw/dfx.json
+++ b/examples/call_raw/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "call_raw": {
             "type": "custom",
+            "main": "src/call_raw.ts",
             "build": "npx azle call_raw",
-            "root": "src",
-            "ts": "src/call_raw.ts",
             "candid": "src/call_raw.did",
             "wasm": ".azle/call_raw/call_raw.wasm",
             "gzip": true,
diff --git a/examples/candid_encoding/dfx.json b/examples/candid_encoding/dfx.json
index 77185fa6c5..4f2f178ba7 100644
--- a/examples/candid_encoding/dfx.json
+++ b/examples/candid_encoding/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "candid_encoding": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle candid_encoding",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/candid_encoding/candid_encoding.wasm",
             "gzip": true,
diff --git a/examples/canister/dfx.json b/examples/canister/dfx.json
index ead5507fec..038155b656 100644
--- a/examples/canister/dfx.json
+++ b/examples/canister/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "canister": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle canister",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/canister/canister.wasm",
             "gzip": true,
@@ -16,9 +15,8 @@
         },
         "some_canister": {
             "type": "custom",
+            "main": "src/some_canister.ts",
             "build": "npx azle some_canister",
-            "root": "src",
-            "ts": "src/some_canister.ts",
             "candid": "src/some_canister.did",
             "wasm": ".azle/some_canister/some_canister.wasm",
             "gzip": true,
diff --git a/examples/ckbtc/dfx.json b/examples/ckbtc/dfx.json
index cf5ec18eff..cf6b60c079 100644
--- a/examples/ckbtc/dfx.json
+++ b/examples/ckbtc/dfx.json
@@ -22,9 +22,8 @@
         },
         "wallet_backend": {
             "type": "custom",
+            "main": "wallet/backend/index.ts",
             "build": "npx azle wallet_backend",
-            "root": "wallet/backend",
-            "ts": "wallet/backend/index.ts",
             "candid": "wallet/backend/index.did",
             "wasm": ".azle/wallet_backend/wallet_backend.wasm.gz",
             "declarations": {
diff --git a/examples/complex_init/dfx.json b/examples/complex_init/dfx.json
index 7728afb2ad..4e133518fa 100644
--- a/examples/complex_init/dfx.json
+++ b/examples/complex_init/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "complex_init": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle complex_init",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/complex_init/complex_init.wasm",
             "gzip": true,
diff --git a/examples/complex_types/dfx.json b/examples/complex_types/dfx.json
index 5b4282346a..ac87899737 100644
--- a/examples/complex_types/dfx.json
+++ b/examples/complex_types/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "complex_types": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle complex_types",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/complex_types/complex_types.wasm.gz",
             "declarations": {
diff --git a/examples/composite_queries/dfx.json b/examples/composite_queries/dfx.json
index 9c23f56237..1dc789c437 100644
--- a/examples/composite_queries/dfx.json
+++ b/examples/composite_queries/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "canister1": {
             "type": "custom",
+            "main": "src/canister1/index.ts",
             "build": "npx azle canister1",
-            "root": "src/canister1",
-            "ts": "src/canister1/index.ts",
             "candid": "src/canister1/index.did",
             "wasm": ".azle/canister1/canister1.wasm",
             "gzip": true,
@@ -20,9 +19,8 @@
         },
         "canister2": {
             "type": "custom",
+            "main": "src/canister2/index.ts",
             "build": "npx azle canister2",
-            "root": "src/canister2",
-            "ts": "src/canister2/index.ts",
             "candid": "src/canister2/index.did",
             "wasm": ".azle/canister2/canister2.wasm",
             "gzip": true,
@@ -34,9 +32,8 @@
         },
         "canister3": {
             "type": "custom",
+            "main": "src/canister3/index.ts",
             "build": "npx azle canister3",
-            "root": "src/canister3",
-            "ts": "src/canister3/index.ts",
             "candid": "src/canister3/index.did",
             "wasm": ".azle/canister3/canister3.wasm",
             "gzip": true,
diff --git a/examples/counter/dfx.json b/examples/counter/dfx.json
index 4514887657..0566991110 100644
--- a/examples/counter/dfx.json
+++ b/examples/counter/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "counter": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle counter",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/counter/counter.wasm",
             "gzip": true,
diff --git a/examples/cycles/dfx.json b/examples/cycles/dfx.json
index aa4139c43f..54ac92674d 100644
--- a/examples/cycles/dfx.json
+++ b/examples/cycles/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "cycles": {
             "type": "custom",
+            "main": "src/cycles/index.ts",
             "build": "npx azle cycles",
-            "root": "src/cycles",
-            "ts": "src/cycles/index.ts",
             "candid": "src/cycles/index.did",
             "wasm": ".azle/cycles/cycles.wasm",
             "gzip": true,
@@ -15,9 +14,8 @@
         },
         "intermediary": {
             "type": "custom",
+            "main": "src/intermediary/index.ts",
             "build": "npx azle intermediary",
-            "root": "src/intermediary",
-            "ts": "src/intermediary/index.ts",
             "candid": "src/intermediary/index.did",
             "wasm": ".azle/intermediary/intermediary.wasm",
             "gzip": true,
diff --git a/examples/date/dfx.json b/examples/date/dfx.json
index 717c735c2f..d862cfcb6a 100644
--- a/examples/date/dfx.json
+++ b/examples/date/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "date": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle date",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/date/date.wasm",
             "gzip": true,
diff --git a/examples/ethereum_json_rpc/dfx.json b/examples/ethereum_json_rpc/dfx.json
index 2537240369..233cee5bc2 100644
--- a/examples/ethereum_json_rpc/dfx.json
+++ b/examples/ethereum_json_rpc/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "ethereum_json_rpc": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle ethereum_json_rpc",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/ethereum_json_rpc/ethereum_json_rpc.wasm",
             "gzip": true,
diff --git a/examples/func_types/dfx.json b/examples/func_types/dfx.json
index ed806a8ba6..ea939ee18b 100644
--- a/examples/func_types/dfx.json
+++ b/examples/func_types/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "func_types": {
             "type": "custom",
+            "main": "canisters/func_types/index.ts",
             "build": "npx azle func_types",
-            "root": "src",
-            "ts": "canisters/func_types/index.ts",
             "candid": "canisters/func_types/index.did",
             "wasm": ".azle/func_types/func_types.wasm.gz",
             "declarations": {
@@ -15,9 +14,8 @@
         },
         "notifiers": {
             "type": "custom",
+            "main": "canisters/notifiers/index.ts",
             "build": "npx azle notifiers",
-            "root": "src",
-            "ts": "canisters/notifiers/index.ts",
             "candid": "canisters/notifiers/index.did",
             "wasm": ".azle/notifiers/notifiers.wasm.gz",
             "declarations": {
diff --git a/examples/generics/dfx.json b/examples/generics/dfx.json
index 7c2f1facf7..a98afec6c9 100644
--- a/examples/generics/dfx.json
+++ b/examples/generics/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "generics": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle generics",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/generics/generics.wasm.gz",
             "declarations": {
diff --git a/examples/guard_functions/dfx.json b/examples/guard_functions/dfx.json
index 4e8af29a65..42ca6052c7 100644
--- a/examples/guard_functions/dfx.json
+++ b/examples/guard_functions/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "guard_functions": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle guard_functions",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/guard_functions/guard_functions.wasm",
             "gzip": true,
diff --git a/examples/heartbeat/dfx.json b/examples/heartbeat/dfx.json
index a8fdaab0b3..562dd6eacd 100644
--- a/examples/heartbeat/dfx.json
+++ b/examples/heartbeat/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "heartbeat_async": {
             "type": "custom",
+            "main": "src/heartbeat_async/index.ts",
             "build": "npx azle heartbeat_async",
-            "root": "src",
-            "ts": "src/heartbeat_async/index.ts",
             "candid": "src/heartbeat_async/index.did",
             "wasm": ".azle/heartbeat_async/heartbeat_async.wasm",
             "gzip": true,
@@ -15,9 +14,8 @@
         },
         "heartbeat_sync": {
             "type": "custom",
+            "main": "src/heartbeat_sync/index.ts",
             "build": "npx azle heartbeat_sync",
-            "root": "src",
-            "ts": "src/heartbeat_sync/index.ts",
             "candid": "src/heartbeat_sync/index.did",
             "wasm": ".azle/heartbeat_sync/heartbeat_sync.wasm",
             "gzip": true,
diff --git a/examples/ic_api/dfx.json b/examples/ic_api/dfx.json
index b8da010ce2..8455f72278 100644
--- a/examples/ic_api/dfx.json
+++ b/examples/ic_api/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "ic_api": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle ic_api",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/ic_api/ic_api.wasm",
             "gzip": true,
diff --git a/examples/icrc/dfx.json b/examples/icrc/dfx.json
index 2c81585ca8..5afbaa85ed 100644
--- a/examples/icrc/dfx.json
+++ b/examples/icrc/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "proxy": {
             "type": "custom",
+            "main": "canisters/proxy/index.ts",
             "build": "npx azle proxy",
-            "root": "canisters/proxy",
-            "ts": "canisters/proxy/index.ts",
             "candid": "canisters/proxy/index.did",
             "wasm": ".azle/proxy/proxy.wasm.gz",
             "declarations": {
diff --git a/examples/imports/dfx.json b/examples/imports/dfx.json
index 68fa6ee9c0..c8e3239791 100644
--- a/examples/imports/dfx.json
+++ b/examples/imports/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "imports": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle imports",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/imports/imports.wasm",
             "gzip": true,
diff --git a/examples/init/dfx.json b/examples/init/dfx.json
index c598ca5008..47a12f1662 100644
--- a/examples/init/dfx.json
+++ b/examples/init/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "init": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle init",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/init/init.wasm",
             "gzip": true,
diff --git a/examples/inspect_message/dfx.json b/examples/inspect_message/dfx.json
index 07d15ea21f..3f777117c0 100644
--- a/examples/inspect_message/dfx.json
+++ b/examples/inspect_message/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "inspect_message": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle inspect_message",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/inspect_message/inspect_message.wasm",
             "gzip": true,
diff --git a/examples/key_value_store/dfx.json b/examples/key_value_store/dfx.json
index dc9c70a18c..b5819fe555 100644
--- a/examples/key_value_store/dfx.json
+++ b/examples/key_value_store/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "key_value_store": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle key_value_store",
-            "root": "azle",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/key_value_store/key_value_store.wasm",
             "gzip": true,
diff --git a/examples/ledger_canister/dfx.json b/examples/ledger_canister/dfx.json
index 8e8269ee4c..5178600136 100644
--- a/examples/ledger_canister/dfx.json
+++ b/examples/ledger_canister/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "ledger_canister": {
             "type": "custom",
+            "main": "src/ledger_canister/index.ts",
             "build": "npx azle ledger_canister",
-            "root": "src/ledger_canister",
-            "ts": "src/ledger_canister/index.ts",
             "candid": "src/ledger_canister/index.did",
             "wasm": ".azle/ledger_canister/ledger_canister.wasm",
             "gzip": true,
diff --git a/examples/list_of_lists/dfx.json b/examples/list_of_lists/dfx.json
index 2b5185954b..8fc2b6ed56 100644
--- a/examples/list_of_lists/dfx.json
+++ b/examples/list_of_lists/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "list_of_lists": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle list_of_lists",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/list_of_lists/list_of_lists.wasm",
             "gzip": true,
diff --git a/examples/management_canister/dfx.json b/examples/management_canister/dfx.json
index a3dc7dfe25..918f866542 100644
--- a/examples/management_canister/dfx.json
+++ b/examples/management_canister/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "management_canister": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle management_canister",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/management_canister/management_canister.wasm",
             "gzip": true,
diff --git a/examples/manual_reply/dfx.json b/examples/manual_reply/dfx.json
index 4e5a1672ce..ec8208eb6a 100644
--- a/examples/manual_reply/dfx.json
+++ b/examples/manual_reply/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "manual_reply": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle manual_reply",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/manual_reply/manual_reply.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/calc/dfx.json b/examples/motoko_examples/calc/dfx.json
index ac4642ebf7..b1b6f6b81c 100644
--- a/examples/motoko_examples/calc/dfx.json
+++ b/examples/motoko_examples/calc/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "calc": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle calc",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/calc/calc.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/counter/dfx.json b/examples/motoko_examples/counter/dfx.json
index 4514887657..0566991110 100644
--- a/examples/motoko_examples/counter/dfx.json
+++ b/examples/motoko_examples/counter/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "counter": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle counter",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/counter/counter.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/echo/dfx.json b/examples/motoko_examples/echo/dfx.json
index f659f00952..27f22d0140 100644
--- a/examples/motoko_examples/echo/dfx.json
+++ b/examples/motoko_examples/echo/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "echo": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle echo",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/echo/echo.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/factorial/dfx.json b/examples/motoko_examples/factorial/dfx.json
index f71f8f8b71..f2fe2ce58e 100644
--- a/examples/motoko_examples/factorial/dfx.json
+++ b/examples/motoko_examples/factorial/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "factorial": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle factorial",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/factorial/factorial.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/hello-world/dfx.json b/examples/motoko_examples/hello-world/dfx.json
index 8cb2a10660..38e0895413 100644
--- a/examples/motoko_examples/hello-world/dfx.json
+++ b/examples/motoko_examples/hello-world/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "hello_world": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle hello_world",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/hello_world/hello_world.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/hello/dfx.json b/examples/motoko_examples/hello/dfx.json
index a1c8e27781..cf1d6b7e10 100644
--- a/examples/motoko_examples/hello/dfx.json
+++ b/examples/motoko_examples/hello/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "hello": {
             "type": "custom",
+            "main": "src/hello/index.ts",
             "build": "npx azle hello",
-            "root": "src/hello",
-            "ts": "src/hello/index.ts",
             "candid": "src/hello/index.did",
             "wasm": ".azle/hello/hello.wasm",
             "gzip": true,
@@ -14,12 +13,12 @@
             }
         },
         "hello_assets": {
+            "type": "assets",
             "dependencies": ["hello"],
             "frontend": {
                 "entrypoint": "src/hello_assets/src/index.html"
             },
-            "source": ["src/hello_assets/assets", "dist/hello_assets/"],
-            "type": "assets"
+            "source": ["src/hello_assets/assets", "dist/hello_assets/"]
         }
     },
     "defaults": {
diff --git a/examples/motoko_examples/http_counter/dfx.json b/examples/motoko_examples/http_counter/dfx.json
index 4b9549efb1..900a871136 100644
--- a/examples/motoko_examples/http_counter/dfx.json
+++ b/examples/motoko_examples/http_counter/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "http_counter": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle http_counter",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/http_counter/http_counter.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/minimal-counter-dapp/dfx.json b/examples/motoko_examples/minimal-counter-dapp/dfx.json
index b5cc224386..b1d450af10 100644
--- a/examples/motoko_examples/minimal-counter-dapp/dfx.json
+++ b/examples/motoko_examples/minimal-counter-dapp/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "minimal_dapp": {
             "type": "custom",
+            "main": "src/minimal_dapp/index.ts",
             "build": "npx azle minimal_dapp",
-            "root": "src/minimal_dapp",
-            "ts": "src/minimal_dapp/index.ts",
             "candid": "src/minimal_dapp/index.did",
             "wasm": ".azle/minimal_dapp/minimal_dapp.wasm",
             "gzip": true,
@@ -14,14 +13,14 @@
             }
         },
         "minimal_dapp_assets": {
+            "type": "assets",
             "frontend": {
                 "entrypoint": "src/minimal_dapp_assets/src/index.html"
             },
             "source": [
                 "src/minimal_dapp_assets/assets",
                 "dist/minimal_dapp_assets/"
-            ],
-            "type": "assets"
+            ]
         }
     }
 }
diff --git a/examples/motoko_examples/persistent-storage/dfx.json b/examples/motoko_examples/persistent-storage/dfx.json
index 9e2ae41a76..a4f163a8c0 100644
--- a/examples/motoko_examples/persistent-storage/dfx.json
+++ b/examples/motoko_examples/persistent-storage/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "persistent_storage": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle persistent_storage",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/persistent_storage/persistent_storage.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/phone-book/dfx.json b/examples/motoko_examples/phone-book/dfx.json
index e9c47f29b0..adea0381f3 100644
--- a/examples/motoko_examples/phone-book/dfx.json
+++ b/examples/motoko_examples/phone-book/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "phone_book": {
             "type": "custom",
+            "main": "src/phone_book/index.ts",
             "build": "npx azle phone_book",
-            "root": "src/phone_book",
-            "ts": "src/phone_book/index.ts",
             "candid": "src/phone_book/index.did",
             "wasm": ".azle/phone_book/phone_book.wasm",
             "gzip": true,
@@ -14,11 +13,11 @@
             }
         },
         "www": {
+            "type": "assets",
             "frontend": {
                 "entrypoint": "src/www/public/index.html"
             },
-            "source": ["src/www/assets", "dist/www/"],
-            "type": "assets"
+            "source": ["src/www/assets", "dist/www/"]
         }
     }
 }
diff --git a/examples/motoko_examples/quicksort/dfx.json b/examples/motoko_examples/quicksort/dfx.json
index e1090908d4..355de7433e 100644
--- a/examples/motoko_examples/quicksort/dfx.json
+++ b/examples/motoko_examples/quicksort/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "quicksort": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle quicksort",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/quicksort/quicksort.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/simple-to-do/dfx.json b/examples/motoko_examples/simple-to-do/dfx.json
index e35631e56f..35fde99a3c 100644
--- a/examples/motoko_examples/simple-to-do/dfx.json
+++ b/examples/motoko_examples/simple-to-do/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "simple_to_do": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle simple_to_do",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/simple_to_do/simple_to_do.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/superheroes/dfx.json b/examples/motoko_examples/superheroes/dfx.json
index 4272d1e0c7..da566b1e72 100644
--- a/examples/motoko_examples/superheroes/dfx.json
+++ b/examples/motoko_examples/superheroes/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "superheroes": {
             "type": "custom",
+            "main": "src/superheroes/index.ts",
             "build": "npx azle superheroes",
-            "root": "src/superheroes",
-            "ts": "src/superheroes/index.ts",
             "candid": "src/superheroes/index.did",
             "wasm": ".azle/superheroes/superheroes.wasm",
             "gzip": true,
@@ -14,11 +13,11 @@
             }
         },
         "www": {
+            "type": "assets",
             "frontend": {
                 "entrypoint": "src/www/index.html"
             },
-            "source": ["src/www/components", "dist/www/"],
-            "type": "assets"
+            "source": ["src/www/components", "dist/www/"]
         }
     }
 }
diff --git a/examples/motoko_examples/threshold_ecdsa/dfx.json b/examples/motoko_examples/threshold_ecdsa/dfx.json
index cc3d7a5fdf..8a314161e9 100644
--- a/examples/motoko_examples/threshold_ecdsa/dfx.json
+++ b/examples/motoko_examples/threshold_ecdsa/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "threshold_ecdsa": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle threshold_ecdsa",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/threshold_ecdsa/threshold_ecdsa.wasm",
             "gzip": true,
diff --git a/examples/motoko_examples/whoami/dfx.json b/examples/motoko_examples/whoami/dfx.json
index b171a6069f..2fbf46c806 100644
--- a/examples/motoko_examples/whoami/dfx.json
+++ b/examples/motoko_examples/whoami/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "whoami": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle whoami",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/whoami/whoami.wasm",
             "gzip": true,
diff --git a/examples/notify_raw/dfx.json b/examples/notify_raw/dfx.json
index 6d313adbf0..8a42446480 100644
--- a/examples/notify_raw/dfx.json
+++ b/examples/notify_raw/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "canister1": {
             "type": "custom",
+            "main": "src/canister1/index.ts",
             "build": "npx azle canister1",
-            "root": "src/canister1",
-            "ts": "src/canister1/index.ts",
             "candid": "src/canister1/index.did",
             "wasm": ".azle/canister1/canister1.wasm",
             "gzip": true,
@@ -16,9 +15,8 @@
         },
         "canister2": {
             "type": "custom",
+            "main": "src/canister2/index.ts",
             "build": "npx azle canister2",
-            "root": "src/canister2",
-            "ts": "src/canister2/index.ts",
             "candid": "src/canister2/index.did",
             "wasm": ".azle/canister2/canister2.wasm",
             "gzip": true,
diff --git a/examples/null_example/dfx.json b/examples/null_example/dfx.json
index a9a23efef3..37239c828c 100644
--- a/examples/null_example/dfx.json
+++ b/examples/null_example/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "null_example": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle null_example",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/null_example/null_example.wasm",
             "gzip": true,
diff --git a/examples/optional_types/dfx.json b/examples/optional_types/dfx.json
index 172f936b5c..8fc4b54ada 100644
--- a/examples/optional_types/dfx.json
+++ b/examples/optional_types/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "optional_types": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle optional_types",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/optional_types/optional_types.wasm",
             "gzip": true,
diff --git a/examples/outgoing_http_requests/dfx.json b/examples/outgoing_http_requests/dfx.json
index 1f2b061611..a19410420c 100644
--- a/examples/outgoing_http_requests/dfx.json
+++ b/examples/outgoing_http_requests/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "outgoing_http_requests": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle outgoing_http_requests",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/outgoing_http_requests/outgoing_http_requests.wasm",
             "gzip": true,
diff --git a/examples/plugins/dfx.json b/examples/plugins/dfx.json
index c57e1fa2c7..72e591f0db 100644
--- a/examples/plugins/dfx.json
+++ b/examples/plugins/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "plugins": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle plugins",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/plugins/plugins.wasm.gz",
             "declarations": {
diff --git a/examples/pre_and_post_upgrade/dfx.json b/examples/pre_and_post_upgrade/dfx.json
index e7f3535153..7ffb06c163 100644
--- a/examples/pre_and_post_upgrade/dfx.json
+++ b/examples/pre_and_post_upgrade/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "pre_and_post_upgrade": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle pre_and_post_upgrade",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/pre_and_post_upgrade/pre_and_post_upgrade.wasm",
             "gzip": true,
diff --git a/examples/primitive_ops/dfx.json b/examples/primitive_ops/dfx.json
index 4a4e1328be..6b1d07dda8 100644
--- a/examples/primitive_ops/dfx.json
+++ b/examples/primitive_ops/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "azle": {
             "type": "custom",
+            "main": "canisters/azle/index.ts",
             "build": "npx azle azle",
-            "root": "canisters/azle",
-            "ts": "canisters/azle/index.ts",
             "candid": "canisters/azle/index.did",
             "wasm": ".azle/azle/azle.wasm.gz",
             "declarations": {
diff --git a/examples/primitive_types/dfx.json b/examples/primitive_types/dfx.json
index 162540cf0f..bc56f230d4 100644
--- a/examples/primitive_types/dfx.json
+++ b/examples/primitive_types/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "primitive_types": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle primitive_types",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/primitive_types/primitive_types.wasm",
             "gzip": true,
diff --git a/examples/principal/dfx.json b/examples/principal/dfx.json
index 4f97785c99..325b4dd077 100644
--- a/examples/principal/dfx.json
+++ b/examples/principal/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "principal": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle principal",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/principal/principal.wasm",
             "gzip": true,
diff --git a/examples/query/dfx.json b/examples/query/dfx.json
index 25b41e31d5..600e5f0df8 100644
--- a/examples/query/dfx.json
+++ b/examples/query/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "query": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle query",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/query/query.wasm",
             "gzip": true,
diff --git a/examples/randomness/dfx.json b/examples/randomness/dfx.json
index 2191430113..47c7729933 100644
--- a/examples/randomness/dfx.json
+++ b/examples/randomness/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "randomness": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle randomness",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/randomness/randomness.wasm",
             "gzip": true,
diff --git a/examples/recursion/dfx.json b/examples/recursion/dfx.json
index 1c67f8741a..abc071e77c 100644
--- a/examples/recursion/dfx.json
+++ b/examples/recursion/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "recursion": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle recursion",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/recursion/recursion.wasm.gz",
             "declarations": {
diff --git a/examples/rejections/dfx.json b/examples/rejections/dfx.json
index 69ffdb934d..2646c46490 100644
--- a/examples/rejections/dfx.json
+++ b/examples/rejections/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "rejections": {
             "type": "custom",
+            "main": "src/rejections/index.ts",
             "build": "npx azle rejections",
-            "root": "src/rejections",
-            "ts": "src/rejections/index.ts",
             "candid": "src/rejections/index.did",
             "wasm": ".azle/rejections/rejections.wasm",
             "gzip": true,
@@ -16,9 +15,8 @@
         },
         "some_canister": {
             "type": "custom",
+            "main": "src/some_canister/index.ts",
             "build": "npx azle some_canister",
-            "root": "src/some_canister",
-            "ts": "src/some_canister/index.ts",
             "candid": "src/some_canister/index.did",
             "wasm": ".azle/some_canister/some_canister.wasm",
             "gzip": true,
diff --git a/examples/robust_imports/dfx.json b/examples/robust_imports/dfx.json
index 80c639f3ec..610150d7d0 100644
--- a/examples/robust_imports/dfx.json
+++ b/examples/robust_imports/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "robust_imports": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle robust_imports",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/robust_imports/robust_imports.wasm",
             "gzip": true,
diff --git a/examples/run_time_errors/dfx.json b/examples/run_time_errors/dfx.json
index a2da290bf4..95a80cda18 100644
--- a/examples/run_time_errors/dfx.json
+++ b/examples/run_time_errors/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "run_time_errors": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle run_time_errors",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/run_time_errors/run_time_errors.wasm.gz",
             "declarations": {
diff --git a/examples/simple_erc20/dfx.json b/examples/simple_erc20/dfx.json
index 7d8616d35a..450f19aa58 100644
--- a/examples/simple_erc20/dfx.json
+++ b/examples/simple_erc20/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "simple_erc20": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle simple_erc20",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/simple_erc20/simple_erc20.wasm",
             "gzip": true,
diff --git a/examples/simple_user_accounts/dfx.json b/examples/simple_user_accounts/dfx.json
index cefa047694..35e7ac16f1 100644
--- a/examples/simple_user_accounts/dfx.json
+++ b/examples/simple_user_accounts/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "simple_user_accounts": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle simple_user_accounts",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/simple_user_accounts/simple_user_accounts.wasm",
             "gzip": true,
diff --git a/examples/stable_memory/dfx.json b/examples/stable_memory/dfx.json
index e2104e781c..41c54dd64a 100644
--- a/examples/stable_memory/dfx.json
+++ b/examples/stable_memory/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "stable_memory": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle stable_memory",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/stable_memory/stable_memory.wasm",
             "gzip": true,
diff --git a/examples/stable_structures/dfx.json b/examples/stable_structures/dfx.json
index 5bd83d7cc1..f913de2402 100644
--- a/examples/stable_structures/dfx.json
+++ b/examples/stable_structures/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "canister1": {
             "type": "custom",
+            "main": "src/canister1/index.ts",
             "build": "npx azle canister1",
-            "root": "src",
-            "ts": "src/canister1/index.ts",
             "candid": "src/canister1/index.did",
             "wasm": ".azle/canister1/canister1.wasm",
             "gzip": true,
@@ -15,9 +14,8 @@
         },
         "canister2": {
             "type": "custom",
+            "main": "src/canister2/index.ts",
             "build": "npx azle canister2",
-            "root": "src",
-            "ts": "src/canister2/index.ts",
             "candid": "src/canister2/index.did",
             "wasm": ".azle/canister2/canister2.wasm",
             "gzip": true,
@@ -28,9 +26,8 @@
         },
         "canister3": {
             "type": "custom",
+            "main": "src/canister3/index.ts",
             "build": "npx azle canister3",
-            "root": "src",
-            "ts": "src/canister3/index.ts",
             "candid": "src/canister3/index.did",
             "wasm": ".azle/canister3/canister3.wasm",
             "gzip": true,
diff --git a/examples/timers/dfx.json b/examples/timers/dfx.json
index 10aa97b218..eaa6faf9e0 100644
--- a/examples/timers/dfx.json
+++ b/examples/timers/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "timers": {
             "type": "custom",
+            "main": "src/timers.ts",
             "build": "npx azle timers",
-            "root": "src",
-            "ts": "src/timers.ts",
             "candid": "src/timers.did",
             "wasm": ".azle/timers/timers.wasm",
             "gzip": true,
diff --git a/examples/tuple_types/dfx.json b/examples/tuple_types/dfx.json
index 243cc7d144..be52556ed9 100644
--- a/examples/tuple_types/dfx.json
+++ b/examples/tuple_types/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "tuple_types": {
             "type": "custom",
+            "main": "src/tuple_types.ts",
             "build": "npx azle tuple_types",
-            "root": "src",
-            "ts": "src/tuple_types.ts",
             "candid": "src/tuple_types.did",
             "wasm": ".azle/tuple_types/tuple_types.wasm.gz",
             "declarations": {
diff --git a/examples/update/dfx.json b/examples/update/dfx.json
index 9722137f5c..67e16dacc7 100644
--- a/examples/update/dfx.json
+++ b/examples/update/dfx.json
@@ -2,9 +2,8 @@
     "canisters": {
         "update": {
             "type": "custom",
+            "main": "src/index.ts",
             "build": "npx azle update",
-            "root": "src",
-            "ts": "src/index.ts",
             "candid": "src/index.did",
             "wasm": ".azle/update/update.wasm",
             "gzip": true,
diff --git a/scripts/update_dfx_json_main.js b/scripts/update_dfx_json_main.js
new file mode 100644
index 0000000000..b8980df57b
--- /dev/null
+++ b/scripts/update_dfx_json_main.js
@@ -0,0 +1,65 @@
+const fs = require('fs');
+const path = require('path');
+
+// Helper function to update the canister definition
+function updateCanister(canister) {
+    if (canister.root && canister.ts) {
+        canister.main = canister.ts;
+        delete canister.root;
+        delete canister.ts;
+    }
+    // Put 'main' right below 'type'
+    const { type, main, ...rest } = canister;
+    return { type, main, ...rest };
+}
+
+// Path to the examples directory
+const examplesDir = path.join(process.cwd(), 'examples');
+
+// Read all directories under examples/
+fs.readdir(examplesDir, { withFileTypes: true }, (err, entries) => {
+    if (err) {
+        console.error(`Error reading directory: ${err}`);
+        return;
+    }
+
+    // Filter to keep only directories
+    const directories = entries.filter((entry) => entry.isDirectory());
+
+    directories.forEach((dir) => {
+        const exampleName = dir.name;
+        const dfxFilePath = path.join(examplesDir, exampleName, 'dfx.json');
+
+        // Read dfx.json file
+        fs.readFile(dfxFilePath, 'utf8', (err, data) => {
+            if (err) {
+                console.error(`Error reading dfx.json: ${err}`);
+                return;
+            }
+
+            // Parse JSON
+            const json = JSON.parse(data);
+
+            // Update canisters
+            for (const canisterName in json.canisters) {
+                json.canisters[canisterName] = updateCanister(
+                    json.canisters[canisterName]
+                );
+            }
+
+            // Write updated dfx.json back to file
+            fs.writeFile(
+                dfxFilePath,
+                JSON.stringify(json, null, 2),
+                'utf8',
+                (err) => {
+                    if (err) {
+                        console.error(`Error writing updated dfx.json: ${err}`);
+                        return;
+                    }
+                    console.log(`Successfully updated ${dfxFilePath}`);
+                }
+            );
+        });
+    });
+});