Soweit ich weiß, öffnet das Repair-Café heute.

It works like as far as I know in English. It shows that the speaker is not claiming absolute certainty; they are giving information based on what they know.

So Soweit ich weiß, ... is a very common way to soften a statement.

Because soweit ich weiß is a clause placed before the main clause. In German, clauses like this are normally separated from the main clause with a comma.

So the structure is:

Soweit ich weiß, = introductory clause
öffnet das Repair-Café heute. = main clause

In a German main clause, the conjugated verb usually comes in second position. That does not always mean it is the second word; it means it comes after the first sentence element.

Here, the first element is the whole introductory clause:

Soweit ich weiß

So the main clause has to begin with the verb:

öffnet das Repair-Café heute.

This is a standard verb-second pattern.

Compare:

Das Repair-Café öffnet heute.
Heute öffnet das Repair-Café.
Soweit ich weiß, öffnet das Repair-Café heute.

All of these are normal.

Yes. That is also completely correct.

The difference is mainly in emphasis and sentence structure:

• Das Repair-Café öffnet heute. = neutral statement
• Soweit ich weiß, öffnet das Repair-Café heute. = adds as far as I know
• Heute öffnet das Repair-Café. = puts more focus on today

Yes, soweit is one word.

In this sentence, it means something like as far as. So:

Soweit ich weiß = As far as I know

It is a fixed, common expression. You should learn it as a chunk.

Yes. So viel ich weiß is also very common and usually means almost the same thing: as far as I know.

In everyday German, both are used.
Soweit ich weiß can sound a little more formal or standard in some contexts, but both are normal.

Because the head noun is Café, and Café is neuter in German: das Café.

In German compounds, the grammatical gender usually comes from the last part of the compound. So:

• das Café
• das Repair-Café

That is why the sentence says das Repair-Café, not der or die.

German often uses hyphens in compounds when one part is a foreign word, especially an English loanword. The hyphen makes the word easier to read.

So Repair-Café is a normal written form in German.

Without the hyphen, it would look less clear.

Öffnet is the 3rd person singular present tense of öffnen.

Here it matches the subject das Repair-Café, which is singular:

• ich öffne
• du öffnest
• er/sie/es öffnet

So:

das Repair-Café öffnet

Good question. Öffnen can be used transitively, meaning to open something:

• Ich öffne die Tür. = I open the door.

But it can also be used intransitively in contexts like shops, cafés, museums, or events, where it means to open / to open for business:

• Das Museum öffnet um zehn.
• Das Repair-Café öffnet heute.

So this use is normal.

Because German word order is flexible, and time expressions like heute can appear in different places.

This sentence puts heute near the end:

Soweit ich weiß, öffnet das Repair-Café heute.

That is perfectly natural.

You could also hear:

• Soweit ich weiß, öffnet das Repair-Café heute.
• Soweit ich weiß, öffnet heute das Repair-Café.
  This is less neutral and puts more focus on today.

The version in your sentence is the most straightforward one.

Literally, it is opens.

But depending on context, English might naturally say either:

• As far as I know, the repair café opens today.
• As far as I know, the repair café is open today.

German often uses öffnen where English might sometimes prefer be open, especially when talking about opening on a certain day.

So the exact English wording can vary, even though the German is the same.

They are capitalized for different reasons:

• Soweit is capitalized because it is the first word of the sentence.
• Repair-Café is capitalized because nouns are capitalized in German.

This is an important rule in German: all nouns begin with a capital letter.

It is neutral and natural. You could use it in everyday conversation, in writing, or in polite speech.

Soweit ich weiß sounds slightly careful and a bit more polished than a very casual phrase like glaube ich in some contexts, but it is not especially formal. It is just standard German.