He has non-trivial patches (several of them are target-specific), which can be viewed here:
https://github.com/jerryscript-project/jerryscript/pulls?q=is%3Apr+is%3Aclosed+author%3Artakacs+

Any seconds?
Nominating Takács Roland (@rtakacs) to become a JerryScript committer
This is a GitHub Issue
repo:jerryscript
owner:jerryscript-project
Title : Nominating Takács Roland (@rtakacs) to become a JerryScript committer
Issue date:

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He has non-trivial patches (several of them are target-specific), which can be viewed here:
https://github.com/jerryscript-project/jerryscript/pulls?q=is%3Apr+is%3Aclosed+author%3Artakacs+

Any seconds?
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None