diff --git a/pom.xml b/pom.xml
index 7d06b730cf..828a9c6507 100644
--- a/pom.xml
+++ b/pom.xml
@@ -409,6 +409,18 @@ OF THE POSSIBILITY OF SUCH DAMAGE.
       <version>0.0.3</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>uk.org.webcompere</groupId>
+      <artifactId>system-stubs-core</artifactId>
+      <version>2.1.7</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>uk.org.webcompere</groupId>
+      <artifactId>system-stubs-jupiter</artifactId>
+      <version>2.1.7</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
   <build>
     <pluginManagement>
@@ -478,6 +490,30 @@ OF THE POSSIBILITY OF SUCH DAMAGE.
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <artifactId>maven-resources-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>copy-resources</id>
+            <phase>initialize</phase>
+            <goals>
+              <goal>copy-resources</goal>
+            </goals>
+            <configuration>
+              <outputDirectory>${project.build.outputDirectory}/rultor-mf</outputDirectory>
+              <resources>
+                <resource>
+                  <directory>src/main/resources/META-INF</directory>
+                  <filtering>false</filtering>
+                  <includes>
+                    <include>MANIFEST.MF</include>
+                  </includes>
+                </resource>
+              </resources>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
       <plugin>
         <artifactId>maven-deploy-plugin</artifactId>
         <configuration>
diff --git a/src/main/java/com/rultor/Env.java b/src/main/java/com/rultor/Env.java
new file mode 100644
index 0000000000..20a5e91da7
--- /dev/null
+++ b/src/main/java/com/rultor/Env.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2009-2024 Yegor Bugayenko
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met: 1) Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer. 2) Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution. 3) Neither the name of the rultor.com nor
+ * the names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
+ * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.rultor;
+
+import com.jcabi.manifests.Manifests;
+import com.jcabi.xml.XMLDocument;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import org.cactoos.io.ResourceOf;
+import org.cactoos.text.TextOf;
+import org.cactoos.text.UncheckedText;
+
+/**
+ * Environment variables either provided in the {@code MANIFEST.MF}
+ * file or through shell variables.
+ *
+ * @since 1.50
+ */
+public final class Env {
+
+    /**
+     * Private.
+     */
+    private Env() {
+        // utility class
+    }
+
+    /**
+     * Read one.
+     * @param name The name of the variable
+     * @return The value
+     */
+    @SuppressWarnings("PMD.ProhibitPublicStaticMethods")
+    public static String read(final String name) {
+        final String xml = System.getenv("SETTINGS_XML");
+        final String ret;
+        if (xml == null) {
+            ret = Manifests.read(name);
+        } else {
+            final String res = "rultor-mf/MANIFEST.MF";
+            final String manifest = new UncheckedText(
+                new TextOf(new ResourceOf(res))
+            ).asString();
+            final Matcher matcher = Pattern.compile(
+                String.format("%s: \\$\\{([^}]+)}", name)
+            ).matcher(manifest);
+            if (!matcher.find()) {
+                throw new IllegalArgumentException(
+                    String.format("Can't find '%s' in %s:%n%s", name, res, manifest)
+                );
+            }
+            final String prop = matcher.group(1);
+            ret = new XMLDocument(xml).xpath(
+                String.format("/settings//*[name()='%s']/text()", prop)
+            ).get(0);
+        }
+        return ret;
+    }
+
+}
diff --git a/src/test/java/com/rultor/EnvTest.java b/src/test/java/com/rultor/EnvTest.java
new file mode 100644
index 0000000000..cafa601121
--- /dev/null
+++ b/src/test/java/com/rultor/EnvTest.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2009-2024 Yegor Bugayenko
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met: 1) Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer. 2) Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution. 3) Neither the name of the rultor.com nor
+ * the names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
+ * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.rultor;
+
+import org.hamcrest.MatcherAssert;
+import org.hamcrest.Matchers;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
+import uk.org.webcompere.systemstubs.environment.EnvironmentVariables;
+import uk.org.webcompere.systemstubs.jupiter.SystemStub;
+import uk.org.webcompere.systemstubs.jupiter.SystemStubsExtension;
+
+/**
+ * Test case for {@link Env}.
+ *
+ * @since 1.58
+ */
+@ExtendWith(SystemStubsExtension.class)
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+final class EnvTest {
+
+    /**
+     * Environment variables.
+     */
+    @SystemStub
+    private EnvironmentVariables environment;
+
+    @Test
+    void readsFromManifest() {
+        this.environment.remove("SETTINGS_XML");
+        MatcherAssert.assertThat(
+            "takes the right value",
+            Env.read("Rultor-SecurityKey"),
+            Matchers.equalTo("${failsafe.security.key}")
+        );
+    }
+
+    @Test
+    void readsFromSettingsXml() {
+        this.environment.set(
+            "SETTINGS_XML",
+            String.join(
+                "",
+                "<settings><profiles><profile><properties>",
+                "<dynamo.key>hello</dynamo.key>",
+                "</properties></profile></profiles></settings>"
+            )
+        );
+        MatcherAssert.assertThat(
+            "has the right XML in env",
+            System.getenv("SETTINGS_XML"),
+            Matchers.not(Matchers.nullValue())
+        );
+        MatcherAssert.assertThat(
+            "takes the right value",
+            Env.read("Rultor-DynamoKey"),
+            Matchers.equalTo("hello")
+        );
+    }
+}