diff --git a/packages/hydrojudge/locales/ko.yaml b/packages/hydrojudge/locales/ko.yaml
index 5ba5cd904..d1f613ecd 100644
--- a/packages/hydrojudge/locales/ko.yaml
+++ b/packages/hydrojudge/locales/ko.yaml
@@ -13,12 +13,12 @@ Found {0} testcases.: 총 {0}개의 TC 찾음
 Invalid judge_extra_files config.: judge_extra_files config 오류
 Invalid user_extra_files config.: user_extra_files config 오류
 Problem data not found.: 문제 데이터 없음
-Read {0}, expect {1}.: '{0}에서 다음을 예상함. {1}
+Read {0}, expect {1}.: '{0}에서 다음을 예상함. {1}'
 Standard answer longer than user output.: 출력이 짧습니다.
 Testdata configuration incorrect.: TC config 오류
 Too many files.: 파일이 너무 많습니다.
 Too many testcases. Cancelled.: TC가 너무 많습니다. 채점을 취소합니다.
-Total time limit longer than 60s. Cancelled.: 총 시간이 60초를 넘습니다. 채점을 취소합니다.
+Total time limit longer than {0}s. Cancelled.: 총 시간이 {9}초를 넘습니다. 채점을 취소합니다.
 Unknown checker type {0}.: Checker 형태 {0}을(를) 식별할 수 없습니다.
 Unknown language type.: 알려지지 않은 언어.
 Unsupported language {0}.: '{0}은(는) 지원되지 않습니다.'
diff --git a/packages/hydrojudge/locales/zh_CN.yaml b/packages/hydrojudge/locales/zh_CN.yaml
index 39fdc910b..7c5c30a6e 100644
--- a/packages/hydrojudge/locales/zh_CN.yaml
+++ b/packages/hydrojudge/locales/zh_CN.yaml
@@ -18,7 +18,7 @@ Standard answer longer than user output.: 标准输出比选手输出长。
 Testdata configuration incorrect.: 题目配置错误。
 Too many files.: 文件过多。
 Too many testcases. Cancelled.: 测试数据过多。评测取消。
-Total time limit longer than 60s. Cancelled.: 总时限超过60s。评测取消。
+Total time limit longer than {0}s. Cancelled.: 总时限超过{0}s。评测取消。
 Unknown checker type {0}.: 未知的比较器类型 {0}。
 Unknown language type.: 未知的语言类型。
 Unsupported language {0}.: 不支持的语言 {0}。
diff --git a/packages/hydrojudge/package.json b/packages/hydrojudge/package.json
index 18f559ff3..1a7f7210b 100644
--- a/packages/hydrojudge/package.json
+++ b/packages/hydrojudge/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@hydrooj/hydrojudge",
     "bin": "bin/hydrojudge.js",
-    "version": "2.1.26",
+    "version": "2.1.27",
     "main": "package.json",
     "author": "masnn",
     "repository": "https://github.com/hydro-dev/Hydro.git",
diff --git a/packages/hydrojudge/src/cases.ts b/packages/hydrojudge/src/cases.ts
index a4a68e5a7..ce6d38f8c 100644
--- a/packages/hydrojudge/src/cases.ts
+++ b/packages/hydrojudge/src/cases.ts
@@ -2,6 +2,7 @@ import fs from 'fs-extra';
 import path from 'path';
 import yaml from 'js-yaml';
 import { Dictionary } from 'lodash';
+import { argv } from 'yargs';
 import { FormatError, SystemError } from './error';
 import { parseTimeMS, parseMemoryMB, ensureFile } from './utils';
 
@@ -284,12 +285,14 @@ function convertIniConfig(ini: string) {
 }
 
 function isValidConfig(config) {
-    if (config.count > 100) throw new FormatError('Too many testcases. Cancelled.');
+    if (config.count > (argv.max_testcases_count as string || 100)) throw new FormatError('Too many testcases. Cancelled.');
     let total_time = 0;
     for (const subtask of config.subtasks) {
         total_time += subtask.time_limit_ms * subtask.cases.length;
     }
-    if (total_time > 60 * 1000) throw new FormatError('Total time limit longer than 60s. Cancelled.');
+    if (total_time > (+argv.max_time_limit || 60) * 1000) {
+        throw new FormatError('Total time limit longer than {0}s. Cancelled.', [+argv.max_time_limit || 60]);
+    }
 }
 
 export default async function readCases(folder: string, cfg: Record<string, any> = {}, args) {
diff --git a/packages/hydrojudge/src/checkers.ts b/packages/hydrojudge/src/checkers.ts
index 9d9e4e059..04555fa9a 100644
--- a/packages/hydrojudge/src/checkers.ts
+++ b/packages/hydrojudge/src/checkers.ts
@@ -153,7 +153,7 @@ const checkers: Record<string, Checker> = {
                 ...config.copyIn,
             },
         });
-        if (status !== STATUS.STATUS_ACCEPTED) throw new SystemError('Checker returned a non-zero value', [status]);
+        if (status !== STATUS.STATUS_ACCEPTED) throw new SystemError('Checker returned {0}.', [status]);
         const score = parseInt(stdout, 10);
         status = score === config.score ? STATUS.STATUS_ACCEPTED : STATUS.STATUS_WRONG_ANSWER;
         return { status, score, message: stderr };
diff --git a/packages/hydrojudge/src/config.ts b/packages/hydrojudge/src/config.ts
index 98e4f057a..42c751a04 100644
--- a/packages/hydrojudge/src/config.ts
+++ b/packages/hydrojudge/src/config.ts
@@ -10,9 +10,6 @@ import log from './log';
 export let CONFIG_FILE = path.resolve(os.homedir(), '.config', 'hydro', 'judge.yaml');
 export let CACHE_DIR = path.resolve(os.homedir(), '.cache', 'hydro', 'judge');
 export let FILES_DIR = path.resolve(os.homedir(), '.cache', 'hydro', 'files', 'judge');
-export let SYSTEM_MEMORY_LIMIT_MB = 1024;
-export let SYSTEM_TIME_LIMIT_MS = 16000;
-export let SYSTEM_PROCESS_LIMIT = 32;
 export let RETRY_DELAY_SEC = 15;
 export let TEMP_DIR = path.resolve(os.tmpdir(), 'hydro', 'judge');
 export let EXECUTION_HOST = 'http://localhost:5050';
diff --git a/packages/hydrojudge/src/sandbox.ts b/packages/hydrojudge/src/sandbox.ts
index 92916519a..908a59bdc 100644
--- a/packages/hydrojudge/src/sandbox.ts
+++ b/packages/hydrojudge/src/sandbox.ts
@@ -1,11 +1,12 @@
 import Axios from 'axios';
 import fs from 'fs-extra';
+import { argv } from 'yargs';
 import * as STATUS from './status';
 import { SystemError } from './error';
 import { cmd } from './utils';
 
 const env = ['PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin', 'HOME=/w'];
-const axios = Axios.create({ baseURL: 'http://localhost:5050' });
+const axios = Axios.create({ baseURL: argv.sandbox as string || 'http://localhost:5050' });
 
 const statusMap = {
     'Time Limit Exceeded': STATUS.STATUS_TIME_LIMIT_EXCEEDED,