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+#!/usr/bin/env python
+# vim:fileencoding=utf-8
+from calibre.web.feeds.news import BasicNewsRecipe, classes
+
+
+class Sonar21(BasicNewsRecipe):
+    title = 'Sonar21'
+    __author__ = 'unkn0wn'
+    oldest_article = 7
+    language = 'en_US'
+    max_articles_per_feed = 100
+    use_embedded_content = False
+    masthead_url = 'https://sonar21.com/wp-content/uploads/2024/10/logo_999999_720x216.png'
+    cover_url = 'https://sonar21.com/wp-content/uploads/2024/09/sonar21_backplate_vertical.jpg'
+    encoding = 'utf-8'
+    browser_type = 'webengine'
+    no_stylesheets = True
+    remove_attributes = ['style', 'height', 'width']
+    extra_css = '.entry-meta, .wp-element-caption, .wp-block-image { font-size: small; }'
+
+    keep_only_tags = [classes('entry-header entry-content')]
+
+    remove_tags = [
+        dict(name=['iframe', 'svg']),
+        classes('addtoany_share_save_container wpd-avatar'),
+    ]
+
+    recipe_specific_options = {
+        'days': {
+            'short': 'Oldest article to download from this news source. In days ',
+            'long': 'For example, 0.5, gives you articles from the past 12 hours',
+            'default': str(oldest_article),
+        },
+    }
+
+    def __init__(self, *args, **kwargs):
+        BasicNewsRecipe.__init__(self, *args, **kwargs)
+        d = self.recipe_specific_options.get('days')
+        if d and isinstance(d, str):
+            self.oldest_article = float(d)
+
+    feeds = ['https://sonar21.com/feed']